Features1 Material: Bike inner tube is made of TPU material, which is sturdy and durable and has a long service life. 2Ultra Lightweight: This bicycle inner tube has an ultra lightweight design that reduces the weight of the tires and improves the performance. 3Increased Speed: Because of more (wheelset) rotating mass, acceleration is more responsive, which improves maneuverability and climbing speed. 4Impact Resistance: Road bike inner tube absorbs the impact of bumpy roads for a comfortable and safe ride. Easy to install and use. 5Heat Resistant And Wearable: The TPU bicycle inner tube is heat resistant and can stand up to the wear and tear of daily use.SpecificationItem Type: Bike Inner TubeMaterial: TPUValve Length: Approx. 45mm / 1.8inPackage List1 xBikeInnerTube