set of 4.10/3.50-4 inch tubular tires for hand trucks, carts, garden carts, lawn mowers, replacement inner tube 4.10-4

The product model is a 4.10/3.50-4 inner tube. The inner tube is made of isobutylene-isoprene rubber, which offers better airtightness, elastic damping, and aging resistance than natural rubber. High performance hose with TR87 flexible valve, max inflation pressure 30 PSI. Inflate only with a hand pump. 4.103.50-4 inch inner tube, suitable for hand trucks, construction vehicles, garden vehicles, lawnmowers, utility vehicles, flatbed trucks, lawnmowers, small tractors, wheelbarrows, garden trailers, generators, snow blowers, and other applications. Note: Before installation, submerge the tube in water to check for leaks. If bubbles form, the tube is damaged.