Madison Supply, Black, Super Strong, Resin and Rubber Coated Hook Magnets (2-pack Black) Package of 2 strong, designer resin neodymium magnet hooks for use on refrigerators, file cabinets, toolboxes, steel doors and more. The matte black finish looks great in the kitchen, and is durable enough for the shop The magnet features rubber backing and is great for heavier objects: coats, towels, hand tools, etc. The hook is removable! Take it off and just use the knob to have a lower profile place to hang a purse. Mounting the magnetic hook to thin steel or vertically will reduce the capacity by approx. 2/3