Features: 1.Thick rubber material, good shock absorption(60psi maximum), reduce the bumps and hollows during riding. 2.Fit vehicles with 8in rims that are between 8.5?9.5in wide such as club cars, tractor, lawn mower, etc. 3.Explosion?proof, it will form an airtight seals if punctured to prevent damage and injury to the rider. 4.With standard TR13 short rubber valve stems. Easy to install, no complicated tools required, convenient to use. 5.Excellent replacement for the old or broken tire inner tube, make your riding easier. Specification: Item Type: 18x8.50-8 Tire Inner Tube _x000D_ Material: Rubber_x000D_ Quantity: 1_x000D_ Mounting: Direct Replacement_x000D_ Application: For trolleys, garden and utility carts, lawn mowers, tractors, trailers, carts, trucks, generators, snow blowers, high-pressure cleaners, air compressors, wood chippers, etc.