Lifting Magnet Maximum Flat Load Capacity 1 500 lb Maximum Round Load Capacity 750 lb Minimum Thickness for Activation 1/4 in Minimum Thickness for Maximum Load Capacity 1/4 in Activation Mechanism On/Off Handle Magnet Length 9 1/4 in Magnet Width 4 3/8 in Magnet Height 6 in Overall Length 13 3/8 in Overall Width 6 7/8 in Overall Height 10 in Bail Inside Width 1 3/4 in Bail Inside Length 2 1/4 in Handle Length 11 1/2 in Minimum Operating Temperature -10 Degrees F