For extra safety in your tub or shower. The strong suction cup design only works on any non-porous, flat surface including tile, glass, acrylic and metal. Provides up to 300 pounds of extra stability when entering and exiting the tub or shower for a safe and comfortable experience^ Perfect for attaching to any vertical or horizontal surface in seconds. Dr. This tub support bar features a non-slip grip that is perfect for seniors, elderly, disabled, handicapped, toddlers and other children. This tub support bar is great for post-operative recovery and injury prevention. It even makes a great footrest when you need to shave your legs in the shower^ No installation required, no drilling or holes required. This tub safety support bar attaches to any flat, non-porous surface such as tile, acrylic and glass. It does not work on natural stone, porous tile, 4X4 tile or wallboard. NOTE: If you have trouble getting the tub support bar to stay in place, it may mean that air is seeping into the suction cup. For a better seal, apply water or petroleum jelly to the tile or suction cup. ^Can be easily removed and reinstalled. Lifting tabs allow for easy repositioning of the armrest. Adjust the height on the shower wall, switch to the side of the tub, or even take it with you when traveling so you can bathe or shower safely anywhere. The grab bar will not damage surfaces when properly installed and used. ^The flip tab creates a vacuum to securely hold the handle in place. This helps you maintain balance when entering or exiting the tub or shower without your full body weight being placed on the product.^