Material: Premium aluminum or ABS hanging shower caddy, strong and durable, rust-proof, corrosion-resistant and scratch-resistant. Installation: No-drill shower holder with self-adhesive adhesive , no drilling required, easy to install (pay attention to installation and wait 24 hours before installing the more stable shelf) Usage: the no-drilling shower caddy is suitable for use in bathrooms, bedrooms , living rooms, kitchens, restrooms and offices, where storage and order. Features: The no-drill bathroom shelf features a hollow vent design on the bottom for quick drainage, which allows your products to clean, dry and clean. Note: Suitable for a wide variety of smooth marble tiles, flat ceramic tiles, smooth glass and metal. Be careful not to apply over uneven tiles, rough wood, drywall, chalky walls, textured wallpapers or rough surfaces.