This super strong lever-release suction cup is specially designed to fit Main Squeeze's proprietary screw-on end cap and powerfully adheres to any smooth, non-porous surface. The Main Squeeze Suction Cup Accessory is designed for hands-free use of your Main Squeeze stroker and is ideal for shower/bath use. The strong adjustable arm swivels and bends for custom positioning, and locks into place. Includes complete instructions for use. To clean, spray with Doc Johnson Toy Cleaner or wash with a mild soap and warm water.