4" X 2" Stainless Steel Non-Marking Rubber Wheel Caster - Rigid (Flat)
-Diameter: 4 inch
-Thead Width: 2 inch
-Type: Non-Marking Rubber Tread on Plastic Core
-Bearing: Roller
-Axle Dia: 1/2 inch
-Overall Height: 4 X 2 inch
-Swivel Radius: 4 - 37/64 inch
-Load Capacity: 325 lbs