COMPATIBLE - Specially developed for 8.5-inch electric . Like the M365 / Pro 2, , A Series and other 8.5-inch electric . HIGH QUALITY MATERIAL - Made of Higher Quality Butyl Rubber. It have good resistance to penetration,mineral acids and aging with highly resistant to mineral acids and wear and tear.The butyl rubber ensures resistance to extreme temperatures (-60C to 180C),can be better protection. AND IMPROVEMENT - Improved version thicker rubber tires which is ultra tear-resistant,scratch-resistant and durable in use,feature a high quality valve that preserves more pressure. EASY INSTALLATION - The replacement inner tire is extremely convenient and simple to install and detach with 2 Tire Lever. Please check the position of the valve,and make you install them in the right direction. High Wear-resistant and excellent durability. Colour:black Material:rubber Package Contents: 2 x Scooter Inner Tubes 2 x Tire Levers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.