Perfect fit for 4.80/4.00-8″ Tires/Wheels: Replacement tubes for 4.80/4.00-8″ tires / wheels (15.5″ outside diameter). Also measured as 4.80 4.00-8, 4.8 4.0-8, 480/400-8, 4.80-8, 4.8-4-8, 480 400-8, 4.8/4.0-8, 4.00/4.80, 4.80-4.00-8 ” inch in Made From Premium Rubber and Built To Last: Made with premium-quality, heavy-duty rubber, these inner tubes are highly durable and ideal for home, professional and commercial / industrial use Compatible With A Wide Variety Of Equipment: Usable with wheelbarrows, lawn mowers / tractors, hand trucks, garden / utility / flat carts, yard trailers, dollies, trolleys, wagons, generators, snow blowers, perssure washers, air compressors, wood chippers and more Don’t Buy A New Tire – Just Replace The Tube: No need to buy a new tire when you have a flat, simply replace the tube and you’ll be back up and running 30 PSI maximum inflation. Only inflate with manual pump to avoid overfilling. Not for road/highway use