Product Name : Suction Cup Hook;Material : PlasticColor : Clear;Suction Cup Diameter : 40mm / 1.6"Totle Size : 40 x 18mm/ 1.6" x 0.7"(D*H)Net Weight : 14gPackage Content : 3 x Suction Cup Hook Hanger Installation sites: Smooth surface (tile,glass ,graite ,stainless steel , plates and so on. No nails, No holes at wall). Used in kitchen, washroom, bedroom, wardrobe and so on. Please under 1.5 Kg in each hook. Usage: Clean the surface of the wall with a dry cloth, then put the black cup hardly until it sucks the surface. Loaded booster board, Tightened up plastic triangle, put a small iron.