Feature: 1. Made of butyl rubber material, it has better air tightness, heat resistance and durability. 2. The butyl rubber tire inner tube can absorb the vibration of uneven roads, thus ensuring comfortable and safe driving. 3. Simple installation, and the old tire inner tube can be easily replaced within a few minutes, which is time‑saving and efficient. 4. Our 24 inch bike tubes can widly fit 24 inch wheel, width between 1.95‑2.125inch tires. 5. The tube is equipped with an AV48MM Schrader valve, never let your bike go flat with a replacement bike inner tube tire on hand. Specification: Item Type: Bicycle Inner Tubes Material: Butyl Rubber Product Color: As Pictures Shown Product Weight: Approx. 200g / 7.1oz. Package List: 1 x Bicycle Inner Tube