This TPR scrotum sack creates a mild pressure sensation as well as a confining caress against the skin of the wearer. Simply fit the penis through the top ring and slip the bottom pouch over the scrotum. The Chamber gives just enough to fit over the wearer, while remaining firm enough to keep things interesting. The top ring helps retain blood flow for an enhanced erection. Measurements: 4.5 in. total length, 3.25 in. width, 1.5 in. inner diameter unstretched.