Here’s a quality magnet that’s made of the same material as the Horseshoe Alnico V Magnets but is much larger. This magnet is coated with a rubber-like plasticel coating to reduce the risk of breakage. It has an average field strength of 3400 gauss and lifts items weighing up to 45kg. Supplied with its own keeper. Size: measures 12.0cm x 10.0cm x 3.2cm.