Marathon Industries 20991 2.80/2.50-4"-Inch Rubber Replacement Tube for Hand Truck / Utility Tires - 8.5"-inch Tire Diameter
Price 7.35 - 15.30 USD
Replacement tube for 8 Outside Diameter Tire, 4 ply rubber, Fix flats without having to buy a new tire, See Tire Side Wall for Tire Load Capacity, 8, 5 Diameter, Not for highway use, SKU: MTNI050