- The wall hooks are made of quality 304 stainless steel the towel hooks are rustproof and waterproof hook the install of the towel hooks will not damage the wall compatible with any other modern designed home decor and easy to clean. The Package Includes--Flat Round Hook Hanger--2.85x4.5cm 2 colors 2pcs/color 4pcs; Square Hook Hanger--4.5x4.5x2.8cm 2 colors 2pcs/color 4pcs. ​Two types of hooks are available for you to choose adding a little fun to life. Easy to Install-- There is an adhesive sticker on the back of the towel hook so there is no need to drill or nail nails just tear it off when using it. Does not hurt the wall. When taking it off you can easily take it off with a blow with hot air from a hair dryer. Safe and Firm--Due to using powerful sticking 3M adhesive tape the adhesive hooks are Stronger adhesion to smooth surfaces so your towel robe coat pan key hat etc can hang on the wall safer. Wide Applications-- If you rent a flat or move frequently and the landlord does not allow drilling the walls to fasten items that you need then the black wall hooks for hanging is just for you. the black adhesive hooks can hang robes hats bags coats pan in the bathroom living room bedroom kitchen etc.