Find your perfect size with the Performance Penis Pump Cylinders. This crystal-clear cylinder delivers 2.5 diameter by 12 total length. Its comfortable flange ensures a better seal. Use this cylinder with any Blush Performance pump and accessories for a more personalized fit. Made of body safe acrylic. the Performance Pump Cylinder is easy to use and easy to clean. Material Type: Acrylic Texture: Smooth Insertable Length: 11 inches Length: 12 inches Width: 2.5 inches