The Muscle Cock-Sheath from Oxballs adds combines the sensation of a stroker with benefits of a cockring and ball stretcherâ€”all made to increase pleasure for you and a partner. Use the Muscle Cock-Sheath to add girth and length to your member. If you want a tighter fit no need to worry. Each Muscles comes with a small silicone stoppers that locks perfectly into the grooved indents at whatever length suits your desire. Water-based lube safe. Overall length: 9.25â€, Inner core length: 6â€, Insertable length: 8â€, Circumference 6â€. Note: TPR can be porous (not sterilizable), so wrap up if you plan to play with others!