Welcome to our store! 1,Our bicycle inner tube is made of rubber material, which has good air tightness and longer service life. 2,The temperature resistance and aging delay of this mountain bike inner tube have been greatly improved. 3,This mountain bike inner tube has an elongated valve, so there is no need to replace the valve core. 4,The rubber tire inner tube can absorb the shock of jouncy roads to ensure comfortable and safe driving. 5,Easy to install. The inner tube of the old tire can be easily replaced within a few minutes, which is time saving and efficient. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: Bike Tube Material: Rubber <style> .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; }</style> 1 x Bike Tube (Customer Satisfaction) - is our priority. If you notice any problems with the products after receiving the goods, such as damaged goods or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sale service. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store