2 1/2″ Swivel Polyolefin Top Plate 2-3/4″ x 3-7/8″ Top plate size and bolt hole configurations match industry specifications Mobility and durability combination economically priced
4″ High-Temperature Epoxy With 3/8″ Precision Ball Bearing 1-5/8″ Hub 700 Lbs Capacity Compression-molded high-temperature epoxy resin thermoset material Easy-rolling integrated ball bearing locked in hub