3 & 4 in Heavy-Duty PU Plate Caster Set - 2 Total-Lock Swivel + 2 Rigid Casters

Specification Dimensions-3 inch Top Plate Size 3.71 in x 2.53 in Mounting Slot Size 0.46 in x 0.32 in Mounting Hole Spacing - Swivel Casters 2.92 in x 1.74 in Mounting Hole Spacing - Rigid Casters 2.91 in x 1.73 in Wheel Diameter 3 in Tread Width 1.1 in Load Height 4.1 in Load Capacity (set of 4) 1,410 lb Dimensions - 4 inch Top Plate Size 3.7 in x 2.52 in Mounting Slot Size 0.45 in x 0.33 in Mounting Hole Spacing - Swivel Casters 2.93 in x 1.75 in Mounting Hole Spacing - Rigid Casters 2.93 in x 1.75 in Wheel Diameter 4 in Tread Width 1.2 in Load Height 4.1 in Load Capacity (set of 4) 1,984 lb Features Quantity 4 Casters Function 2 total lock swivel casters + 2 rigid casters Swivel Lock total lock on swivel casters; locks wheel and swivel Brake Type foot-operated total lock brake Wheel Tread Material PU Wheel Core cast iron Bracket Material / Finish zinc-plated steel Bearing Type double sealed ball bearings Hardware Included bolts, nuts, washers, split washers, wrenches