Reliable Hardware Company RH-9005-SET-A Casters Swivel Top Plate 2-Inch Wheel Diameter Zinc, Set of 4 Metal Imported Top Plate 2.56'' x 1.88'' . Bolt Pattern .213'' x .938'' 2'' Diameter Rubber Wheel 2.50'' O.A.H. Load Rating 100 Lbs. each Caster Commonly Used with Small Removable Plate