Feature: 1. Applicable Models: Inner tube has a wide range of applications and is suitable for the replacement of electric vehicles, motorcycles and tricycles. 2. Reasonable Design: Easy to install and disassemble, old and damaged tire inner tubes can be replaced in minutes, saving your time and efficiency. 3. Lengthened Valves Design: The lengthened valve eliminates the need to replace valve cores and can be reused to help tires inflate quickly. 4. Effectively Absorb Impact: Rubber tire inner tube can effectively absorb the impact of uneven road, ensuring driving comfort, speed and safety. 5. Durable Material: Made of rubber material, it has good air tightness, temperature resistance and anti aging, which greatly improves the service life. Specification: Item Type: Inner Tube Material: Rubber Color: Black Weight: Approx. 479g / 16.9oz Applicable Models: Electromobile, Tricycle, Scooter. Package List: 1 x Inner Tube Note: 1. Confirm that the specifications of the inner tube are consistent with the inner tube. Each inner tube is equipped with a valve nozzle and a nut and a rubber capthat can bear the load. Please carefully check whether there is sand in the inner space of the outer tube, whether there are cracks or other adverse factors when the inner tube is installed into the outer tube.2. When the inner and outer tires are installed on the rim, please check the rim in detail first to ensure that there are no adverse factors on the rim, no deformation, no bending, and no debris. Please use the lining belt to cover the loose and rough strip head or other pointed surfaces that will damage the inner and outer tires.3. Please tighten the nut carefully with a spanner, do not use some pointed tools. RIMLOCK is recommended for increased safety when the tyre is being used at high speeds as it can damage the inner tube or outer tube lip.4. When the inner and outer tires have been installed in the ring, please be very careful, do it, the valve nozzle is correctly locked on the ring, and exposed to the ring for air, the inner tube is not clamped between the outer tire and the ring.5. The inner and outer tires have been installed on the rim, give the inner tire 10PSI gas, and then stop pumping, and check whether the inner and outer tires are correctly locked on the rim, and then you can press the manufacturer's recommended air pressure (marked on the edge of the tire) punching, the rim line on the tire must be all exposed outside the rim can be seen.6. Do not pump too full or too little, which will lead to the valve and inner tube fall off, and accidents, please check whether the air pressure is at the normal level, please check the valve to prevent leakage, the valve lock.7. It is forbidden to store the inner tube together with oil inflammable and chemical corrosion items and keep away from heat source.