Item Type: Inner Tube Material: Rubber and metal alloy Inner Tube Stem Type: TR-13 straight valve stem Application: The replacement inner tube prepares you for any possible flat tire Rim: Suitable for 6in rims that are between 3.5in to 4.0in wide Fitment: Fit for vehicles with 6in rims that are between 3.5in to 4.0in wide, fit for club cars, tractors, lawn mowers, snowthrower, tillers, trailers, wheelbarrows, ATVs, etc. Package List 2 x 3.5/4.0-6 Inner Tube 1Fitment: Inner tube fit for vehicles with 6in rims that are between 3.5in to 4.0in wide, fit for club car, tractor, lawn mower, snowthrower, trailer, wheelbarrow, ATV, etc. 2Premium Material: Tire inner tube is made of premium rubber and metal alloy material, wear resistant, high strength, heavy duty, durable and has a long service time. 3Shock Absorption: ATV inner tube can absorbs shock and you won't feel bumps and dents, protect you from external forces, add comfort to your riding. 4Explosionproof: When the inner tube is punctured, immediately forms an airtight seal to prevent injury to the rider, safe in all seasons or weather conditions. 5Simple Installation: The installation is simple and fast, direct replacement, no complicated operaiton is required, convenient for using, save your time and energy.