Product Description 10x2.125 inch inner tube for Schwinn road tricycles, 10-inch bicycles, tricycles, strollers, 10-inch electric scooters, fuel-powered scooters, and mobility scooters. This inner tube is made of isobutylene-isoprene rubber, which offers better air tightness, elastic damping, and anti-aging properties compared to natural rubber. No valve cap; fully inflatable. With 90-degree bend valve and valve cap. Material: Rubber. Color: Black. Size: 10x2.125 inches. Features: Inflatable. Valve: 90-degree bend valve. Package Includes: 2 inner tubes. Only the above package contents are included; other products are not included. Note: Light during photography and different monitors may cause the color of the item in the picture to be slightly different from the actual product. Dimensions may have an error of +/- 1-3 cm.