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. If you liked the GYM-BOY, you're gonna fuckin' love the new and improved version, MUSCLE. This brand spankin' new cocksheath is made from our super-soft FLEXtpr and unlike the GYM-BOY, this one is designed to mold to your penis with a deep sucking sensation (think deep throating on steroids). Now you can explore new horizons in your boy's bottomless hole with this penis massaging enhancer. Please even the hungriest of penis-hounds by adding some serious length to your penis. The base is modeled after our signature COCKSLING-2 and holds this thick rubbery dong on your penis...no matter how hard you're poundin'. If you want a tighter fit, no need to worry, each MUSCLE comes with a small silicone stopper that locks perfectly into the grooved indents at whatever length suits your penis. Each sheath has soft TPR ridges that not only feel great gripping your penis, but also add some sperm churnin' suckin' sensations all up and down your penis. Lube it up (don't forget to generously coat the inside), slap it on and enjoy the sloppy sucking enveloping your engorged member as your boy clamps his guts down on your massive MUSCLE penis.