N/a manufacturer / supplier in China, offering Motorcycle Inner Tube 4.00-8 Rubber Content: 45% - 55%., Mini Farm Tractor with 16 Inch Inflatable Rubber Wheels 4.00-8 and Black Wheels for Tire Replacement, 10 Inch Beach Wheel Inflatable Balloon Tires and Wheels Made of Durable Rubber Polyurethane and Polypropylene and so on.