1.This inner tube made of premium-quality rubber,heavy duty and durable 2.This tube comes with TR87 angel Valve Stem,fits for 145X70-6 450/530-6 Wheel,also replace for 4.50-6, 5.30-6, 5.30/4.50-6 and 145/70-6 Tire 3.This heavy duty inner tube is available for lawn mowers, tractors, hand trucks, wheelbarrows, dollies, trolleys, wagons, garden / utility flat carts, yard trailers, snow blowers, perssure washers, air compressors, wood chippers,generators,etc 4.Package Included : 2 x Inner Tubes 5.JJDD focus on provide high quality products at fair price: Professional factory, Professional technical support; 3 Months warranty; if you unsatisfy with our product, you can return to our USA warehouse, no risk.