Powerlift® Magnets, 800 lbs. (0.4 tons) Holding Cap., 7-7/8" L x 3-5/8" W x 8-7/8" HCompact yet powerful rare earth lift magnets can be used on flat or round surfaces and contain an internal release on off device that does not contact or damage the surface of the part being lifted Permanent magnetic lifts eliminate the fear of dropping the load being lifted due to power failures 3: 1 design factor Conforms to ASME B30. 20 standards Handle: 5 7 8" Max. Holding Capacity: 800 lbs. (0. 4 tons) Overall Length: 7 7 8" Overall Width: 3 5 8"