2 PCS 4.80/4.00-8 Inner Tubes Made of high quality and heavy duty rubber, these inner tubes are very durable and ideal for home, professional and commercial, industrial use. Compatible models for reference 4.80/4.00-8 tire. 15.5 tire diameter fits 15.5 pneumatic tires/wheels - Perfect for hand trucks, carts, lawn mowers, wheelbarrows, generators, utility carts with 16 wheels. Fits on 8 rim. /WHEELS: Replacement inner tubes for 4.80/4.00-8 tires/wheels (15.5 outer diameter). Also measured in 4, 80 4.00-8, 4.8 4.0-8, 480/400-8, 4.80-8, 4.8-4 -8, 480400-8, 4.8/4.0-8, 4.00/4.80, 4.80-4.00-8 inches. Note: MAX INFLATION 30 PSI. Inflate only with a hand pump to avoid over-inflation. Not designed for road or highway use. Universal causes of tire and tube failure: A single puncture or small hole usually comes from a thorn, wire, or small nail. These may be repairable. Also check the tire for thorns, etc., then remove it. Double splits are usually the result of a pinched rim. The tube has been