APPLICABLE TIRE SIZE -- Fit 20x8.00-8, 20x10.00-8 tire / wheel, fit vehicles with 8" rims that are between 8.0" to 10.0" wide, also a replacement tube for 18x6.50-8, 18x7.50-8, 18x8.50-8, 18x9.50-8, 20x8.50-8, 20x9.00-8, 19x7-8'' (Contact with us in time if you have any questions about size) WIDE COMPATIBILITY -- Improvedhand 20x8.00-8 inner tube fits for lawn mowers, tractors, hand trucks, wheelbarrows, dollies, trolleys, wagons, garden / utility flat carts, yard trailers, snow blowers, perssure washers, air compressors, wood chippers,generators,etc HIGH QUALITY -- Improvedhand inner tube with TR13 standard valve stem is made of premium 100% natural rubbers, dependable and durable. It is tested by several processes before leaving the factory to ensure the quality of the tires SAFETY -- High quality inner tube makes it perfect to keep you safe in any season or weather condition, premium materials can prevent damage, destruction and injury to the rider WARRANTY 100% -- Any reason of quality or compatility within 30 days, contact us getting refund, you can feel a 100% confident buy and enjoy a 24 hours pro tech online help any time