Need some extra length and girth? Doc Johnson's 10.5 inch Cock Master is a durable and realistic penis extension that provides the added size you've been craving. The hollow dong easily slips onto an erect or semi-erect penis, creating an incredible vacuum effect to ensure you won't slip out. The Cock Master is made of phthalate-free, body-safe PVC material. Available in White. Proudly made in America.