Perfect fit for 4.10/3.50-4″ TIRES / WHEELS: Replacement tubes for 4.10/3.50-4 tires / wheels (10″ outside 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″, 4.10×3.50-4?? Heavy duty inner tube with TR87 bent valve stem, ISO 9001 certified. Maximum inflation is 30 PSI. Inflate with manual pump only This inner tube is made of isobutylene isoprene rubber, which is better in air tightness, elastic damping and aging resistance than natural rubber 4.10 3.50-4″ Inner Tube works with hand trucks, dollies, garden cart, garden wagon, lawn cart, utility cart, flat carts, lawn mowers, small tractors, wheelbarrows, yard trailers, Trolley Carts, wagons, generators, snow blowers and most 410/350-4 Wheel Applications CUSTOMER SATISFACTION: Before installing, check to see if the inner tubes are completely sealed by putting them in water, if there are any bubbles, they are already damaged. Please contact us, we wil