Color:Shampoo Holder SPECIFICATION Package: 1 Large hole hanger + 1 Small hole hanger. Size: 5.3cm*6.7cm*6.7cm, the hanging holes( L&S), diameter: 3.3cm/1.3" and 2.7cm/1.06" INSTRUCTION 1) Please clean and dry your wall before use, make sure the wall is flat and smooth. 2) And apply the glue on the hook, then press the shampoo hook firmly against the desired surface ; Fix the hook with auxiliary glue; The shampoo hook can be work after 72 hours SURFACE REQUIREMENTS These work only on non-porous,smooth surfaces such as polished ceramic tile,mirror, glass window, polished stainless steel wall and plastic board etc, won't work on any porous, bumpy, rough or textured surfaces such as textured wall, rough coating surface, unpolished marble or wooden door, rugged porcelain surface etc.