Features: Great tire replacement accessory, special for 50/75-6.1 electric scooter tires and universal for front and rear wheels. Made of high-quality rubber, thickened treatment, durable, explosion-proof, pressure-resistant and wear-resistant. Easy to install and disassemble, convenient to replace, flexibly adjusted and well fixed. The anti-slip pattern design on the outer surface increases friction and can be used in rainy and snowy days, safer driving. Compatible with most 8.5-inch electric scooters on the market, such as M365, Pro, Pro2, 1S, Lite, etc. Specifications: Type: Inner and Outer Tire/Inner Tire/Outer Tire (Optional) Color: Black Material: Rubber Pattern: Inner: 8 1/2*2; Outer: 50/75-6.1 Item Size: 205 * 205 * 60mm/ 8.1 * 8.1 * 2.4in Item Weight: 470g/ 16.6oz Note: Only for replacing tires of the same model. Packing List: 1 * Inner Tire 1 * Outer Tire