1. Butyl rubber: Made of thick butyl rubber, the shock absorption effect is obvious, which not only adds comfort to your riding, but also ensures your safety. 2. Product features: The tires have the advantages of better sealing performance, ozone resistance, anti-aging, shock absorption and electrical insulation, and are durable to use. 3. High load capacity: Elasticity and cushioning capabilities make the tire resist all pressure changes, not easily deformed and more durable. 4. Advantages: Compared with solid tires, pneumatic tires have good cushioning properties, allowing you to drive on most roads with confidence, giving you a comfortable driving experience. 5. Application: The tire and tube assembly is an exact replacement for tires and tubes used in different utility applications, including lawn mowers, hand trucks, carts, wagons and more. Specification: Item Type: 4.10/3.50?4 Tire and Tube Material: Rubber Product Color: As pictures shown. Tire Specification: 4.10 3.50?4 Outer Diameter: Approx. 25.4 cm / 10.0 inch Inner Diameter: Approx. 10cm / 3.9in Product Weight: Approx. 1150g / 40.6oz Package List: 1 Tire 1 Inner Tube.