Simple, yet oh so useful. These penis extender accessories are designed to fill in any space between the head of the penis and the head of the sleeve.  No more hollow space that prevents even thrusting.

Measure the amount of space you need to fill, and insert the squishy inserts. For a perfect fit, feel free to cut them to size.  Insert into the sleeve before putting it on to provide reinforcement. 

The clear rubbery inserts disappear inside the sheath for a discreet look. These handy inserts keep cock sheaths and penis extenders firm, even when there is no erection, so everyone can keep playing!

Check out penis extender offerings to put these in: the Ride On, Holster, and Colussus!