Brand Name: Marathon *Product Type: Hand Truck Tire *Wheel Diameter: 10.3 in. *Wheel Width: 3.3 in. *Weight Capacity: 300 lb. *Material: Polyurethane *Rim Diameter: 4 in. *Axle Diameter: 5/8 in. *Inflatable: No *Construction: 4-Ply *Compatibility: Casters and Other Equipment (Generators and Pressure Washers) *Hub Style: Offset *Discovery NBR, SUP