The Performance Silicone Pump Sleeve is a safe, secure way to ensure the best possible fit while pumping! This hygienic silicone sleeve is designed to create a superior seal when used with either 2-inch or 2.5-inch penis pump cylinders. The material is stretchy but durable, for consistent use over time. Made of satin smooth silicone, its body safe and easy to keep clean.Medium pump sleeve fits 2-inch and 2.5-inch cylindersComfortable and durable for extended functionalityCreates an optimal seal on your pumpHygienic and simple to clean