Steelex D2581 Swivel Heavy Duty Industrial Wheel, 8-Inch Description We call these "all terrain" caster for good reason. These solid rubber knobby tires on a steel hub with ball bearings are perfect for wet, uneven terrain or for surfaces. They are great for use on lumber carts, and with some creativity can help make a great "off road" tool hauler for those extended projects away from the shop. Rugged steel mounting pad and bracket. Swivel bearing can be greased for smooth wheeling. These 8" swivel casters have a 4-1/2" x 4" plate and 500 lbs. capacity. From the Manufacturer Red polyurethane tire is molded onto a tough hard rubber hub. Integral roller bearings in the hub make installation on an axle shaft quick and easy. Rounded profile of the tire delivers minimal rolling resistance, and the polyurethane material will not mar or scuff floor surfaces. Features: All terrain casters Solid rubber knobby Contains One Swivel caster Great for a wide variety of applications Product Details: Color: Black Brand: Steelex Material: Polyurethane,Rubber Unit Count: 1.0 Count Item Weight: 8.07 Pounds Manufacturer: ‎Steelex Part Number: ‎D2581 Item Weight: ‎8.07 pounds Country of Origin: ‎China Item model number: ‎D2581 Is Discontinued By Manufacturer: ‎No Size: ‎8" Color: ‎Black Style: ‎Swivel Material: ‎Polyurethane,Rubber Pattern: ‎Wheel Item Package Quantity: ‎1 Cutting Diameter: ‎8 Inches Mounting Type: ‎Plate Mount Special Features: ‎Swivel Included Components: ‎One Swivel Caster Batteries Included?: ‎No Batteries Required?: ‎No Warranty Description: ‎90 Day Limited Assembled Diameter: ‎8 Inches Date First Available: October 29, 2011