Damage Free:No Drilling,No Screws,No Holes,No Glue Is Needed | | Easy Installayion And Removable: Just A Push Or Pull On The Lever Handle For Lock Or Loose And It Is Designed To Be Removable And Reusable For Your Replacement | | Use Tipes And Attention:This Item Is A Pack Of Two Hooks That Works Only On Non-Porous,Smooth Surfaces Such As Polished Ceramic Tile,Mirror, Glass Window,Polished Stainless Still Wall And Plastic Board Etc, Won'T Work On Any Porous,Bumpy,Rough Or Textured Surfaces Such As Rough Coating Surface,Unpolished Marble Or Wooden Door,Rugged Porcelain Surface Etc | | Supper Suction And Long Lasting: Made Of High Quality Abs Plastic And German Basf Tup Rubber For Suction Pad That Can Hold Up To Max Load Of 11 Pounds And Stay Suctioned For Years | | Note:If The Hook Can'T Be Sucked Up, We Can Wash It With Water, The Surface Of The Rubber Suction Cup, And Then Use A Hair Dryer To Dry The Rubber To Soften The Rubber Before Use. The Effect Will Be Better! | | W.