Lifting Magnet Maximum Flat Load Capacity 1 600 lb Maximum Round Load Capacity 800 lb Minimum Thickness for Activation 1/2 in Minimum Thickness for Maximum Load Capacity 1 in Activation Mechanism On/Off Handle Magnet Length 8 3/4 in Magnet Width 4 5/8 in Magnet Height 4 3/4 in Overall Length 10 5/8 in Overall Width 12 in Overall Height 9 1/8 in Bail Inside Width 2 3/4 in Bail Inside Length 4 in Handle Length 10 5/8 in Minimum Operating Temperature 40 Degrees F