ShineMe Premium ABS Suction Cup Hook with Plating Vacuum Traceless Hooks for Smooth Wall Shower Kitchen Window Bathroom Hook Bag Coats Towels Caps Holder (2pcs) Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic, laminate and any non-porous surface, the hooks with glossy finish(Can not work on oil, leakage and gap walls, pelase make sure the surface clean and neat). Super strong suction power and the hook cover like a mirror reflective. Note: Please insure the surface of the wall is smooth and non-porous.Bearing weight up to 3KG. Clear the wall and ensure the wall dry, and then Press the hook on the wall, clockwise turning to lock it, it will stick to the wall firmly. Installation: Put the hook on the smooth surface and rotate the suction follow the Close indicate to lock the hook. It is reusable. (Please install the hook at the room temperature due to the cold weather, or you can put it in warm water to soften the suction cup.) Sucker: Plastic; Hook: stainless steel. For more guidance in order to use this item long-life, please kindly make sure to read our description on how to maintenance the suction. Thank you! Super strong suction power and the hook cover like a mirror reflective. Can be use as a mirror. Super strong suction power. The open and close instruction on the surface of the hook help you use the hook. The hook is reusability, by clockwise turning can lock it, and counterclockwise turning can remove it. Made of SUS304 stainless steel. Very subtle housing. DIY concept. Can be used in different ways. Super strong suction power. Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic, laminate and any non-porous surface with glossy finish. Clear the wall and ensure the wall dry. Clean the suction pad, put it on the needed location, push and press the central button. Put the hook on the smooth surface and rotate the suction follow the Close indicate to lock the hook. To uninstall, simply counterclockwise turning it, you can easily remove it. The suction power relies on draining air out of the sucker cup, so the surface must not have any concave-convex, holes, liquid or anything else.<br> Reminded: 1. Please install the hook at the room temperature due to the cold weather, or you can put it in warm water to soften the suction cup. Can not work on oil, leakage and gap walls, pelase make sure the surface clean and neat.