1、Rubber Material: The inner tire of this electric scooter is made of premium rubber material, with stable internal structure and strong flexibility. 2、Protective Valve: Compared with plastic caps, our metal caps are strong and durable, not easy to be damaged, which can protect the valve of your scooter tires more effectively and maintain a stable pressure. 3、Professional Molding: Inner tubes are also professionally molded to prevent crushing and resist twisting, ensuring maximum protection and performance. 4、Premium Inner Tube: This inner tube is sturdy and practical, durable and not easy to damage, with higher safety performance and longer service life. 5、Protect the Inner Tube: When removing or mounting the inner tube, do not use sharp mounting tools that could puncture the inner tube.