LA Pump Silicone Donut CushionImproved Sealing for More Effective Pumping This silicone cylinder cushion is designed to create a better seal between the cylinder and the body. By filling small gaps and conforming naturally to the skin, it helps reduce air leaks and supports more consistent vacuum pressure throughout each session. Enhanced Comfort Without Reducing Diameter The cushion is engineered to sit at the base of the cylinder without reducing the internal chamber size. This