Usage Tips:Heavy-duty tubes with TR87 curved stems up to 30. Inflate with hand pump onlyThe inner tube is made of isobutylene isoprene rubber, which is better than natural rubber in terms of air tightness, elastic damping and aging resistance. no restatement4.10 3.50-4 inch inner tubes for wheelbarrows, wheelbarrows, garden carts, garden carts, lawn carts, utility carts, flatbed carts, lawn mowers, small carts, wheelbarrows, yard trailers, wheelbarrows, vans, generators Machines, snow blowers, etc. 410/350-4 wheel applicationsCustomer Satisfaction: To install, check that the inner tubes are completely sealed by running water, if so, they are damaged.There are separate terms for sales from abroad that may differ from your local, including fit, age rating, product language, labeling or instructions.Size 4.10/3.50-4Rim size 4 inchesItem dimensions L x W x H 25 x 21 x 5 cmItem weight 389.5 grams