PCP brand suction grip shower handle allows the user to enter a wet or slippery tub or shower safely and with confidence. It helps prevent dangerous slips and falls and is great for travel. Simply position the suction cup grab bar where you want, mount the handle, and push down on the suction cup levers to install the handle on any clean, smooth, nonporous surface. Works with any smooth, flat and non-porous surface. Position as needed through out bathrooms for elderly, seniors, recovering patients; and those with limited mobility. Give peace of mind by preventing injury and bathing accidents. Diameter of suction area is approximately 3.8 inches; Always ensure surface remains in contact with suction cup for air tight seal; Remove and test by relocking prior to each use; Hospital grade material for care givers, the disabled, and assisted living. Available sizes: model 9312 (12" Length); model 9316 (16" Length); model 9324 (24" Length).