Easy to install:you just push cup flat on wall or window surface for hanging itmes without damaging the surface,the suction wire hook is removable Material:sucker cup hooks are made of PVC and stainless steel, sturdy,waterproof and reusable.Hanging items well without damaging the surface Size:clear suction cup is 4.5cm/1.7inch,the cup hook thickness is 2mm/0.07inch.one suction cup hook can hold about 1.5Kg items Use:please wipe suction hooks surface and fix it on window or wall surface before use,lift tab remove easily no tools, no holes, sticky residue, or stain Application:suction cup hooks is suitable for bathroom kitchen office and other places such as glass,window even door.Great for hanging fairy lights,wreath or towelProducts from NIUNIU's store