If you are looking for an effective bike inner tube, don’t miss this! Our bike tube is made of premium rubber for more durable and long life use. With PVC anti-piercing tire pads to ensure tubes are in a safer condition without too much inner friction. Features - Color: Black. - Material: Rubber. - Size: 63.00 x 63.00 x 4.50cm/ 24.76 x 24.76 x 1.77 inch. - This inner tubes can help you ride through the whole bike season without replacing the tubes again. - Our inner tubes are of , effectively preventing punctures, aging and corrosion, and prolonging the service life of the inner tubes, allowing you to ride with confidence. - rubber. tightness, heat resistance and durability. - Our tubes are seamless and are molded and cured to ensure uniform roundness and higher reliability of the stem. - Replacement inner tube for a hybrid, fitness, comfort bike or other bike with the same tire size. Package list: 2 x inner tubes