This replacement inner silicone sleeve is used to provide extra grip between the body and the retainer.
 
These sleeves fit the following devices:
 
Forenew Air Inflation
Forenew Dual Inner Foreskin
Forenew Banded Inner Foreskin
Forenew Tugging
 
Available in a range of sizes, these note if you foreskin width is less than 36mm in diameter please order the 36mm size.