Features： 1、Rubber Material: Made of rubber material, it has good air tightness, temperature resistance and anti aging, which greatly improves the service life. 2、Lengthened Valves Design: Lengthened valves eliminate the need to replace valve cores and can be reused to help tires inflate quickly. 3、Effectively Absorb Impact: Rubber tire inner tube can effectively absorb the impact of uneven road, ensuring driving comfort, speed and safety. 4、Replacement Part: Easy to install and disassemble, old and damaged tire inner tubes can be replaced in minutes, saving your time and efficiency. 5、Applicable Models: The inner tube has a wide range of applications and is suitable for the replacement of electric vehicles, motorcycles and tricycles. Specification： Item Type: Inner Tube Material: Rubber Color: Black Weight: Approx. 279g / 9.8oz Applicable Models: Electromobile, Tricycle, Scooter 1: Confirm that the specifications of the inner tube are consistent with the inner tube. Each inner tube is equipped with a valve, nut and rubber cap that can withstand the load. When installing the inner tube into the outer tire, please carefully check whether there is sand in the inner space of the outer tire and whether the outer tire is There are cracks or other adverse factors. 2: When installing the inner and outer tires on the steel rim, please check the steel rim in detail to make sure that there are no adverse factors on the steel rim. The steel rim is not deformed, bent, and free of debris. Cover with strip heads or other incisive surfaces that can damage the inner and outer tires. 3: Please use a wrench to tighten the nut carefully, do not use some incisive tools. Tighten the screws such as a screwdriver, they will damage the inner tube or the bead of the outer tire. When the tire is used for high speed driving, it is recommended to use RIMLOCK for added safety. 4: When the inner and outer tires have been installed on the steel rim, please be very careful to ensure that the valve is properly locked on the steel rim, and the steel rim is exposed for inflation, and the inner tube is not sandwiched between the tire and the steel rim . 5: The inner and outer tires have been installed on the rim, inflate the inner tube with 10PSI, and then stop inflating, and check whether the inner and outer tires are properly locked on the rim, and then you can press the air pressure recommended by the manufacturer (marked on the bead of the outer tire). top) inflating, the rimline on the tire must be visible outside the steel ring. 6: Do not pump too much or too little, this will cause the valve and the inner tube to fall off and cause an accident. Please check whether the air pressure is at a normal level, please check the valve to prevent air leakage, and lock the valve tightly. 7. It is forbidden to store the inner tube together with the flammable and chemically corrosive items such as oil, and it must be kept away from heat sources. Package List： 1 x Inner Tube