"Fairbanks nonmarking, quiet and easy rolling phenolic wheels protect floors and resist shock, water, and oil. Double ball bearings and seal ring keep lubrication in and dirt out. Corrosion-resistant gray finish. Casters qty. 1, Finish Type Gray, Caster Type Rigid w/brake, Top Plate Dimensions L x W in. 4 1/2 x 4, Wheel Width in. 2, Foot Brake Yes, Bolt Hole Spacing 3-3 5/8 x 2 5/8-3, Capacity lbs. 1,000, Overall Height in. 5 5/8, Bearing Type Roller, Wheel Type Phenolic canvas, Mount Height in. 5 5/8, Wheel Diameter in. 5, Material Type Steel. One piece fork assures less failure and longer life Durable gray powder-coat finish Sturdy phenolic/canvas wheel Factory installed footbrake 1000 lbs. capacity"