Tire Science 4-Inch x 6-Inch Non-Highway Pre-Filled Inner Tube For use with 4 x 6-Inch tires Non-highway replacement inner tube 4 x 6 and 13 x 5-6 for 6" rim Tire sealant formulation finds and seals leaks and seals puncture instantly up to 1/8" to prevent future leaks Effective down to -25 degrees Farenheit and can exend life of older tires Universal straight valve stem