


Penis Cylinder Seal Donut creates an airtight seal around pump cylinders to eliminate painful pinching and pressure loss. Premium TPR material forms perfectly to your body while three diameter options ensure the right fit for comfortable pumping sessions.
Key Features:
Creates perfect vacuum seal around penis base during pumping sessions while eliminating discomfort through premium TPR material that adapts to body contours for extended comfortable use.
Three hole diameter options of 1.3cm 2.0cm and 2.7cm ensure customized fit for different penis sizes while maintaining consistent vacuum pressure throughout pumping sessions.
TPR thermoplastic rubber construction provides superior flexibility and durability while remaining soft against skin during penis pumping for enhanced comfort and effectiveness.
Universal compatibility with standard pump cylinders eliminates need for multiple accessories while secure grip properties prevent slipping during vacuum pumping sessions for reliable performance.
Non porous material resists bacteria and cleans easily with soap and water while maintaining shape and effectiveness through numerous penis pumping sessions for lasting value.
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Penis Cylinder Seal Donut transforms pump sessions by creating an airtight seal that eliminates the discomfort and pressure loss common with standard cylinder edges. Three different hole diameters accommodate various sizes while soft TPR material cushions your skin during extended pumping.
This seal wraps around the base of your cock where it meets the pump cylinder, replacing harsh plastic edges with cushioned TPR that molds to your anatomy. The material maintains vacuum pressure while preventing painful pinching that can kill your erection mid-session. Unlike rigid seals that dig into sensitive skin, this donut flexes with your body's natural contours while keeping air from leaking back into the cylinder.
Hardness persists harder longer as consistent suction builds blood flow without the distraction of uncomfortable pressure points. The soft barrier lets you focus entirely on the swelling sensation as your dick expands within the cylinder. Orgasms become more achievable since you're not fighting against seal discomfort that breaks concentration right when you're about to cum.
Slide the donut over your pump cylinder opening before starting your session. Choose the hole diameter that fits snugly around your cock base without cutting off circulation. Position the seal so it sits flat against your body when the cylinder makes contact, creating a complete barrier between skin and plastic edges.
Begin pumping slowly to test the seal quality - you'll notice immediate pressure builds faster and holds longer than bare cylinder use. Increase suction gradually while the TPR cushions your base, letting you reach higher pressure levels comfortably. The consistent vacuum helps your cock swell fuller while the soft material prevents the painful red marks that harsh edges leave behind.
Pump users who struggle with uncomfortable cylinder edges will find this seal eliminates the main barrier to longer sessions. Men with sensitive skin particularly benefit from the soft TPR barrier that prevents chafing and pinching. However, those who prefer completely hands-off pumping might find the initial sizing process requires some trial with the different diameter options until finding their perfect fit.
| Feature | Specification | Sexual Benefit | User Experience |
|---|---|---|---|
| TPR Material | Medical-grade thermoplastic rubber | Eliminates painful pinching during pumping | Soft cushion replaces harsh plastic edges |
| Triple Size Options | 1.3cm, 2.0cm, 2.7cm hole diameters | Provides custom fit for optimal blood flow | Snug seal without circulation restriction |
| Airtight Design | 6.3cm outer diameter sealing ring | Maintains consistent vacuum pressure | Faster pressure buildup with less pumping effort |
| Non-Porous Surface | Smooth sealed TPR construction | Hygienic material resists bacteria buildup | Simple washing keeps it perfectly clean |
While not restrictive like traditional chastity gear, this seal works with pump-based cock control by making extended pumping sessions more tolerable. The comfort upgrade lets dominants keep their submissives under suction for longer periods without the mercy breaks harsh seals typically require.
This manual pump accessory offers tactile sensation control that complements high-tech masturbation toys. Use it for cock conditioning between automated sessions, or combine pump swelling with app-controlled strokers for dual sensation experiences that build toward massive climaxes.
Explore all Masturbators With App Control →
Installation took seconds - just slip the 2.0cm diameter seal over my cylinder opening and position it where my cock meets the base. The TPR material immediately felt softer against my skin compared to the bare plastic rim I'd been tolerating. Building pressure became noticeably smoother since the seal prevented air leaks that previously made me re-pump constantly. My cock swelled fuller without the distraction of painful pinching that usually broke my concentration. The cushioned barrier let me reach higher vacuum levels comfortably, and I could actually maintain focus long enough to finish with the pump still attached. After climaxing, the seal peeled away cleanly without the angry red marks that plastic edges typically leave. The 6.3cm outer diameter creates such an effective vacuum that pump sessions now require half the effort while producing better results. This simple upgrade solved every comfort complaint I had about cylinder pumping.
Order your Penis Cylinder Seal Donut from the cockringshop and stop enduring painful pump sessions that kill your erection before you can finish. This TPR upgrade cushions your cock base while maintaining perfect vacuum pressure for comfortable pumping that actually lets you cum.
Cockringshop.com.au ships with Australia Post. We ship from Sydney.
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
1. Major City & Metro Areas (within Australia)
All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.
2. Rural Areas (within Australia)
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.
International Shipping
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order. If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.
Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.
We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
Due to health and safety regulations, cockringshop.com.au cannot resell any returned or exchanged products.
This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.
To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.
Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully.
Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund
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