About our product: Our shower caddy is designed with built-in drain holes, it can prevent water left on the shelf after shower. It's really easy to install, no need to drill holes on the wall, just put the shelves with supplied screws, peel off the red sticker cover and stick on the right palce, then hang the shef on hooks. Each hook can hold up to 10-15 kg. The shower holder can be installed on all smooth surfaces, such as ceramic tile, glass, frosted glass, smooth wood, metal, marble, etc. Not suitable for rough tiles. Perfect for the bathroom, bedroom, kitchen and anywhere you need tidy storage, maximize your bathroom storage space. Features: Material: Space aluminum Self-adhesive: Strong transparent self-adhesive hook Installation: Sticky hook Waterproof, rustproof, waterproof moisture How to best install the bathroom shelf: 1, install the shelf with screws provided 2, clean the surface, make sure sure it is dry, smooth, clean and free of dust, oil and grease 3. Peel off the red