Constructed of Hardwood Maple and Oak

Small: 3 5/8″ Outside Diameter • 2 1/2″ Inside Diameter
Medium: 4 1/2″ Outside Diameter • 3″ Inside Diameter
Large: 5 3/4″ Outside Diameter • 3 3/4″ Inside Diameter
X Large: 6 1/2″ Outside Diameter • 4 1/2″ Inside Diameter
XX Large: 7 1/2″ Outside Diameter • 5 1/2″ Inside Diameter

NOTE: – Sold individually, not in sets.
Be sure to choose the correct number of caster cups to suit your needs.