MAGNET CEILING HOOKS: This hook is ideal for hanging mid-weight signs, banners, fabrics, and heavier items. Its powerful neodymium ceiling magnets connect to any ferrous metal surface (including drop ceilings and open-beam ceilings) NO SCRATCH HOOKS: These magnetic hooks feature durable plastic coating that prevents ceiling scratches. Select from white or black coating to blend into colored ceilings for a nearly invisible connection to ceiling displays when used with Clear LoopLine EASY-TO-ATTACH MAGNETIC HOOKS: A double center ring allows for easy attachment to signs, displays and decor items using our patented LoopLine SIMPLIFIED USAGE: Lift the magnet into position with any MagMover connected to a MagPole for safe and convenient sign, decor or display installation and removal MAGNET DIMENSIONS: Each magnet measures 2.25 x .8 x .6 inch (5.8 x 2.0 x 1.5 cm). Each magnet has up to a 10 pound (4.5 kg) magnetic pull These magnet ceiling hooks are designed for hanging mid-weight signs, banners, fabrics, and heavier items. They feature powerful neodymium magnets that connect to any ferrous metal surface, including drop ceilings and open-beam ceilings. To prevent ceiling scratches, these hooks have a durable plastic coating and come in white or black options for blending into colored ceilings when used with Clear LoopLine. With a double center ring, they are easy to attach to signs, displays, and decor items using the patented LoopLine. For simplified usage, users can lift the magnet into position with any MagMover connected to a MagPole, making sign or display installation and removal safe and convenient. Each magnet measures 2.25 x .8 x .6 inches (5.8 x 2.0 x 1.5 cm) and has a strong magnetic pull of up to 10 pounds (4.5 kg).