Super Strong Lever-Release Suction Cup Vac-U-Lock Plug Base Fits Any Vac-U-Lock Attachment Powerfully Adheres to Any Smooth, Non-Porous Surface Swivels and Bends for Custom Positioning Designed for Hands-Free Use Perfect for the Shower or Bath. Total Length 6.5 (in) / 16.51 (cm)Width/Diameter 3.5 (in) / 8.89 (cm)Material PP/PVC/ABS