Features: 1.Wide Application: Fit for 90CC ATV go karts, hand trucks, dollies, trollies, wagons, utility carts, lawnmowers, wheelbarrows, generators, snowblowers, wood chippers, air compressors, yard trailers, and other wheeled equipment. 2.Durable Rubber Material: The 145/70?6 145X70?6 450/530?6 inner tube is made from heavy duty butyl rubber for long lasting using, perfect for home, professional and commercial, industrial use in tire application. 3.Anti Explosion Tube: 145/70?6 tire inner tube features excellent self sealing properties that prevent explosive punctures by creating instantaneous air tight seals around puncture holes, greatly making sure your safety. 4.With Valve Stem: The tube comes with TR13 straight valve stem, which has a 1.5in offset from the center of the tube. With a length of 1.38 inches and a width of 0.453 inch, fits 1/2?inch rim holes, used on most lawn garden and utility inner tubes. 5.Shock Absorbing Riding: The rubber 145/70?6 tire tube can deliver better elastic damping effect, work effectively in tandem with the bikes suspension system to provide you with the most comfortable riding experience. Specification: Item Type: 145/70?6 Tire Inner Tube Material: Rubber, metal alloy Stem Type: Straight Metal Stem Application: Fit for your front or rear 145X70-6 450/530-6 Tire or Wheel: also a replacement tube for 4.50-6, 5.30-6, 5.30/4.50-6 and 145/70-6 PackageList: 2 x 145/70?6 Tire Inner Tube