2 Replacement Inner Tubes 4.10/3.50-4 with TR87 Bent Valve for 10-Inch Tires/Wheels COMPATIBLE INNER TUBE / TIRE SIZES - Suitable for wheels with an inner diameter of 4 inches compatible with tire sizes 4.10 3.50-4, 410/350-4, 3.5-4 4, 4.1/3.5 4, 4.10 3.50 4, 4.10 3.50-4, 4.10/3.50-4, 4.10/3.50-4", 4.10x3.50-4 inches. Can be used in hand trucks, lawnmowers, wheelbarrows, carts, small tractors, garden carts, utility carts, garden trailers, hand carts, wagons, generators, snow blowers, pressure washers, air compressors, wood chippers, and other utility equipment. This inner tube is made of isobutylene isoprene rubber, providing better air tightness and aging resistance compared to natural rubber.