General description The 90 Degree Replacement Inner Tube is specifically designed for use with scooter tires sized 255x80, 90/65-6.5, and 80/65-6.5. This 2-pack of inner tubes ensures reliable performance and durability, providing a smooth riding experience. Made from high-quality butyl rubber, these inner tubes significantly enhance your riding experience and extend the product's lifespan. Technical specifications Color: Black Material: Butyl Rubber Size: 24.3 x 24.3 x 4.7 cm Package Contents: 2 x Electric Skateboard Inner Tire Measurement allowed error: +/- 1-3 cm Installation Designed for easy installation and use.