Wheel Diameter: 4" (Click link to find similar sized casters)Tread Width: 1"Material: Polyolefin LDLoad Rating (Per Item): 200 poundsFinish: ZincConnector Specs: Grip Ring (7/16" x 1-1/2")Bearing: Plain boreLoad Height: 4-3/4"Swivel Radius: 3-1/4"Shipping Weight: 1.15 lbs.Usually Ships in: 1 week (may be affected by quantity ordered)• Economy Series. • Capacity up to 250 lbs. • Case hardened double ball raceways. • Applications: Light-duty material handling equipment, food service carts & equipment, bakery racks & equipment, institutional carts & equipment, miscellaneous dollies, mobile cases, displays, mobile wire racking, stock carts, textile applications, warehouse & manufacturing applications.