Rust-proof anodized aluminum frame and shelves keep your shower clean and organized. Fully clean and dry surface before application Non-slip hook securely grips shower head and can be installed tool-free from below. No climbing necessary! Large-capacity baskets feature wide, flat wires that remain sturdy even when full of heavy bottles.For best results, use on smooth glazed surfaces, mirrors or glass. Not recommended for use with textured or porous surfaces including some stone, acrylic or metal Generous shelf spacing accommodates a variety of bottle heights Rotating suction cups and pegs on soap dish provide extra stability Large soap dish sized to hold more than just bars of soap and built-in razor holder keeps razors close by