Ipegtop Stainless Steel Triangle Basket Corner Basket ,Rotate & Lock Suction Cups Hook Holder Buttoned Super Strong Suction Vacuum Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic, laminate and any non-porous surface with glossy finish KEEP IN MIND THIS SUCTION WILL NOT WORK ON POLISHED TILE,POLISHED TILE IS POROSITY. The red ring on the button gives reminder that the suction cup tends to fall off.The hook can spin 360 degree freely. No worry about the position. Innovative rotate and lock suction technology allows this product to install without glue or tools Made of SUS304 stainless steel. Dimensions: 26x23x3.8 cm(10.2x9x1.5inch),Weight: 500g