Top Plate > 4 X 4-1 / 2 Outside

Set Of 4 Heavy Duty Kingpinless Swivel Casters With 8 X 2 Phenolic Wheel 1500#
Set Of 4 Heavy Duty Swivel Casters With Poly On Aluminum 8 X 2 Wheels
Set Of 4 Heavy Duty Swivel Casters With Poly On Aluminum 6 X 2 1000# Cap
Set Of 4 Swivel Plate Casters With 8 X 2 Heavy Duty Blue Patriot Polyurethane
Set Of 4 Extra Heavy Duty Swivel Tool Box Casters With 6 Phenolic Wheels
Set Of 4 Heavy Duty Albion Swivel Casters With 5 X 2 Phenolic Wheel 1300# Cap
Set Of 4 Heavy Duty Casters With Polyurethane On Aluminum 8 X 2 Wheels & 2 Bra
Set Of 4 Heavy Duty Casters With Polyurethane On Aluminum 6 X 2 Crown Tread Wh
Set Of 4 Patriot Swivel Plate Casters With 6 X 2 Heavy Duty Blue Polyurethane
4 Superior Heavy Duty Swivel Plate Caster 6 X 2 Soft Rubber Wheel