Premier material used for the suction cup hooksThe vacuum suction hooks heavy duty is made of premier PVC, ABS and Stainless steel material with super strong adsorption, It is non self-adhesive, durable, waterproof, anti-corrosion and anti-rust, especially suitable as bathroom waterproof hooks for shower as bathroom towel holderReusable and Removable hooks damage free, easy to install: The extra strong sticky hanging hooks is convenient to install, no drilling or holes, no nails, no screws, no glue, damage free for your wall, Increase suction power to the wall by rotate clockwise and remove by rotate counterclockwise, no glue and scratches left on your wall with 360 degree rotation hook design, you can move and fix it to anywhere you wantBig stick on wall hooks heavy duty with extra strong suction cup: The strong suction cups wall hanging hooks are with very strong suction power, can hold up to max. 8kg items, but it is recommended to use less than 3 -5kg for daily lifeCondition to use: the large sucker wall hooks can only stick on flat, smooth, clean non-porous surface, like glass, mirror, acrylic, stainless steel, wood for the back of door, cupboard or the bathroom, ceramic tiles in the kitchen for hanging tea towels, not suitable for dusty, porous, uneven surfaces like painted wall, cement wall, plaster wall, frosted Glass, wallpaper wall etc.Widely application: You can use the multi-purpose handy hooks as bathroom hooks for towels, wall hook, shower door hooks, back of door hooks, towel hooks for bathrooms, towel holders for bathrooms, kitchen towel hooks, picture hooks, over door coat hooks, mirror hooks, bathroom door hook and window suction hooks etc.