These heavy-duty rings are the optimum choice for serious pumpers. This pump sleeve fits cylinders measuring up to 3 inches or 7.5 centimeters in diameter. Just slip it onto the base of your favorite device's cylinder for added comfort and protection.

High-quality silicone provides the ultimate stretchy and durable ring to fit a variety of cylinder sizes. This universal sleeve is body-safe and unscented for your peace of mind.