Safe and Durable: The scooter tire has better elasticity, and the honeycomb hole design is excellent at dissipating heat and absorbing shock to improve safety, so you are not afraid of meadows, rough roads and flooded roads. . rubber material: Our solid tire is high-quality rubber material, non-toxic and tasteless, and has a grooved tire surface, excellent grip, can prevent slipping, you can not worry about slipping on wet ground. . solid tire: If you use the solid tire, you no longer need patches, tubes and bicycle pumps. Say goodbye to the tradition of inflated tires. No repairs and no maintenance required. save your money . Spare tire size and application: Outer diameter is 21cm, inner diameter is 16cm, 3.5cm thick. The tire is perfect for M365/1S/GXL V2 electric scooter and so on. . Customer service: We offer our customers the best products and services. If you are not satisfied with the product or have any questions, you can always contact customer service. Well solve the problem for you. .