Ball Casters
Heavy Duty Nylon Garage Door Roller Wheel Ball Sealed Bearing 120mm 2 Inch Nylon Amp Steel Wheels 10 Ball-Bearings 4Pcs

Specifications:
-Shank Material : Iron
-Wheel Material : Nylon
-Sealed Ball Bearing Quantity : 13 Pieces
-Shank Diameter : 10mm(0.39")
-Total Length : 120mm (4")
-Wheel Diameter : 45mm ()
-Wheel Thickness :11mm(0.43")
Package Included:
4 x Garage Door Roller Wheel