FeiFan Damage-free Plastic Single Vacuum Suction Cup Hook professional holder for smooth surface strong hanger (White) Easy to apply and removes cleanly: One key to press the center button until can't see the red ring Works on a variety of surfaces: Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic Strong hook damage-free remove-a single suction can bear 6 kg maximum and keep it for long time Advance notice function - the red ring on the button gives reminder that the suction cup tends to fall off 360 digger freely-the hook can spin 360 degree freely, no worry about the position