"Cold-forged steel construction with steel ball bearings. 2 3/8in. x 3 5/8in. top plate with a bolt hole spacing of 1 3/4in. x 2 5/16in.. Capacity (lbs.): 400, Wheel Size (in.): 5, Bolt Hole Spacing: 1 3/4 x 2 5/16, Top Plate: 2 3/8 x 3 5/8, Wheel Type: Rigid, Material: Polyolefin, Quantity: 1"
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