The long flexible silicone shaft with flat head makes the sound easy to insert without hurting urethra. These sounds are made to mimic a screw or nail. The purpose of the sound is to gradually and gently enlarge the urethra using a tube shaft that is inserted into the penis.
Silicone Hexagon Penis Plug Kit
Function: Penis Plug Color: Black Length: 15.5 cm/6.1" Insert Length: 15 cm/5.9" Dia: 0.8/1.2/1.5 cm 0.3/0.4/0.6 inch Material: Silicone