Sturdy & Durable -- The shower grab bar is made of ABS plastic, 3 suction cups that more strong power than other 2 suction cups item, very sturdy and durable. You won't slip even when the floor is wet, providing comfortable and relieved experience in bathroom, shower, tub and toilet handrail. Important Tips -- This suction cup handle device must be applied on non-porous, texture-free, dry, clean, flat and smooth surfaces, such as dry tile, smooth glass.Clean and dry surfaces thoroughly before installation to ensure smooth, non-porous surfaces. Tool-Free Installation -- The bathroom grab bars is easy to install, no tools required and no drilling needed. Please clean and dry both surfaces of 3 suction cups grab bars and wall, hold the bathroom handle and press suction cups firmly into place, then push them to the wall as near as possible, then lock down both levers completely to secure. The shower handles dont harm the surface its on nor leaves marks when placed right. Powerful Support -- Grab bars for bathroom is perfect for using in the bathroom and toilet, Providing you extra stability when entering or leaving the bathtub, shower or toilet for a safe and comfortable experience.