This shower grab bar is only suitable for tile walls of 5x5 inches or larger and cannot be removed after installation. For safe use, it can only be attached to smooth, non-porous, airtight surfaces such as metal, glass, tile, marble, stainless steel, and acrylic. It is not suitable for textured tile, unpolished marble, wallpaper, drywall, porous walls, painted walls, subway tile, and similar surfaces. Do not put your full body weight on the grab bar when in use. The grab bar has a maximum load capacity of 330 lbs. It uses upgraded rubber suction cups with excellent sealing performance. The 4.72 in. enlarged suction surface increases contact area and adsorption force. The top of the grab bar is equipped with anti-slip strips to enhance friction, and the bottom has a curved wave design that fits fingers, providing double safety protection. No drilling, screws, glue or tools are required for installation. It comes with 2 heavy-duty suction cups with locks. Installation can be finished in 5 seconds by pressing down the lock. It is detachable, reusable and will not damage the wall. Suitable for bathrooms, bathtubs, showers, toilets, kitchens and other places, it provides balance assistance for the elderly, pregnant women, children, injured people and those with limited mobility. Color: Gray. Material: Plastic.