4.10 3.50-4 inch inner tube works with hand trucks, dollies, garden carts, yard carts, lawn carts, utility carts, flatbed carts, lawn mowers, small tractors, wheelbarrows, garden trailers, dollies, trolleys, generators, snow blowers and most 410/350-4 wheel applications Perfect Fit for 4.10/3.50-4 inch Tires/Wheels: Replacement inner tubes for 4.10/3.50-4 tires/wheels (10 inch outer diameter). Also measured as 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 inch, 4.10x3.50 -4 inch This inner tube is made of isobutylene isoprene rubber, which has better air tightness, elastic damping and aging resistance than natural rubber. NOT summarize Heavy duty inner tube with TR87 bent valve stem, maximum inflation 30 PSI. Inflate with a hand pump only CUSTOMER SATISFACTION: Upon installation, check if the inner tubes are completely sealed by putting them in the, if there are bubbles, they are already damaged. Feature: Inflatable Valve: TR87 Bent