They must also be fixed on a flat, smooth surface and must not be on an uneven surface. Requires tools or drilling. Made of all-copper for added strength and durability, forming a durable armrest. Our promise,We will solve your problem within 24 hours, and promise that if the product has quality problems within 3 months, we will provide you with a brand new product. Warm to touch, fluted grab rails for safer grip and confidence. Textured handle for extra grip when wet and mounts on to bath or shower wall for stability and support when entering, exiting, and during shower or bath.