Muscle Ripped Cocksheath Black from Oxballs. Made from our new super soft, strong, stretchy FlexTPR. Bullet insert lets you customize the fit and feel of the inner chamber. Ribbed interior sucks and stimulates. Built in Cocksling at the base keeps Muscle in place. Cocksheath design increases your natural girth and size. Flex your Muscle with our girthy cocksheath that adds thickness and length to any sized guy. It’s designed to mold onto you with a deep sucking sensation, the shaft is lined with ridges that stroke like a JO toy. The base is our signature Cocksling 2, it keeps this thick rubbery penetrator in place no matter how hard you pump. To adjust for a tighter fit, Muscle comes with a bullet insert.