Use it as a complete set and the cock ring keeps you rock hard-up while you enjoy some additional stimulation from the stainless steel anal plug. The solid cock ring is 1.6"/1.8"/2" inside diameter and a beefy 1 cm thick. The bar which the cock ring is connected to has 5 adjustment points so you get the exact right fit. Attach the plug with the hex key screw at the base to that bar at it's closest point to the ring and get a little extra pull and tug on the cock ring to increase the fun if you like, but it's specially designed so you can choose the perfect length between the ring and plug.

The steel plug can also be used alone as an anal plug only. The shaped plug is 2.5" long and 1.25" in diameter at it's widest point.