Fieldoor 44 Pound Strong Neodymium Indoor/Outdoor Magnet Hook, Heavy Duty Magnetic Hooks (4 Pack) 4 hook magnets - each holds 25 pounds. 25 pound capacity is based on horizontal application -- reduced by 2/3 If used vertically Pull force: 25 pounds. Hook size: 1 inch base x 1 11/16 inch high Eye bolt is removable and may be replaced with other threeded parts These magnets are ideal for the adult inventor, Manufacturer, researcher, diyer, problem solver, etc