Features: - Made of high-quality rubber material, durable and wear-resistant, anti-aging and sturdy. - The thickness of the tires is enhanced to ensure the flexibility and buffer capacity that can withstand any pressure change. - Easy to assemble and remove, convenient and practical. - Suitable for Xiaomi Mijia M365 electric scooter. Specifications: Color: black Material: rubber Inner Diameter of Outer Tube: 15.5cm Outer Diameter of Outer Tube: 21cm Outer Tire Width: 6cm Inner Tube Thickness: 2.5mm Package Included: 1 x 8 1/2X2 Straight Nozzle Inner Tube 1 x 8 1/2X2 Tyres .