Quality: Our suction cup hook are made of high quality ABS plastic, eco-friendly. The adsorption is more powerful, sturdy and waterproof. The aluminum alloy screw head and the copper material which is not easy to slide are the secret of the long-lasting strong load-bearing of the suction cup hook.^Heavy Duty Hooks: The suction cup can hold up to 6.6lb. Each suction cup is 2.2"x3.9". Great for hanging towels, bathrobes, bath wipes, ladies backpacks, coats, holiday decorations, etc.^Easy to Install and Removal: No screws, no nails, no holes, no glue, no tools! Convenient to install in everywhere. Turn the knob counter clockwise and release the vacuum. Just wash the suction cup hook with warm water and air dry it for reuse.^Multifunctional Suction Hook: The suction cup hook suitable for direct mounting on smooth, non-porous surfaces such as glass, mirrors, smooth tiles. even some rough surfaces like ground glass.^Waterproof and Oilproof: Water spraying on the towel hook can't affect the hook, The sticky suction cup let it adsorb solidly on the bathroom and kitchen. ^