We are tire experts with more than 20 years of experience to recommend the best product for you. Are you annoyed when your tire often leaks, especially after a long time? If you buy a free inflatable tire to change it, it will never burst, nor will it leak, your pump can be laid off! This can save you a lot of money and is environmentally friendly. The old wheels with inner tires and the wheels without inner tires can be replaced with the same specification of the free inflatable tire!4.80/4.00-8 using polyurethane foam technology, tire density is high, more durable, raw materials no peculiar smell, no doped recycled materials, and will not leave a trace on the ground, is so farconfiguration ceiling in this field!