Item Type: Bicycle Inner TubesMaterial: Butyl RubberProduct Color: As Pictures Shown Product Weight: Approx. 146g / 5.2oz .wang-edit-text{ font-family:"Arial" important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Made of butyl rubber material, it has better air tightness, heat resistance and durability. 2The butyl rubber tire inner tube can absorb the vibration of uneven roads, thus ensuring comfortable and safe driving. 3Simple installation, and the old tire inner tube can be easily replaced within a few minutes, which is timesaving and efficient. 4Electric Bicycle replacement inner tubes are suitable for most electric bicycle bikes. 5The tube is equipped with an Bent valve, never let your bike go flat with a replacement bike inner tube tire on hand. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!