This signature extender, by Oxballs, adds thickness and length to any sized biocock. The Muscle Sheath is designed to mold onto the wearer with a deep sucking sensation – the base is the same as the , to keep the extender in place no matter how hard you pump. An optional, included soft stopper can inserted for a tighter fit: it perfectly locks into the grooved intents of the inner chamber at whatever length suits your anatomy.

Internally, the Muscle Sheath features soft ridges that grip and stimulate the length of the wearer’s shaft with every stroke. Be sure to use lube generously inside and outside the toy for a satisfying ride. Designed to withstand hard play.

Oxballs’ sheaths are made of their signature soft, stretch TPR (elastomer). We consider this material to be body-safe, however it *IS* porous. Thus we recommend you use this sheath with only one partner, or cover it with a condom. Water-based or hybrid lubes recommended, spot-test silicone lube before use. Avoid use with oil-based lubes.

Body-safe TPE free of phthalates

Measures 9.25" total, 8" insertable

Approx. diameter: 2" wearer's penis

Inner shaft length 5.5-6”