Matel Various Sizes Suitable: ACEROMT TPU Inner Tube 700c is compatible with many tire sizes: 18/23/25/28 30/32c, the sizes of the presta valve are 45mm, 65mm, and 85mm. TPU Inner Tube 700c: TPU Materials are lighter and stronger than butyl rubber and have higher air tightness than latex. With a weight reduction of 70% compared to ordinary butyl rubber inner tube, the use of this TPU ultra-light inner tube can significantly reduce the rotational mass of the vehicle riding, making the ride more flexible. Portable Wightlight Inner Tube: The size of the ACEROMT TPU Bicycle Inner Tube is only 1.38in* 1.57in* 4.53in. The weight of the TPU inner tube is only 32g, which is about 2/3 volume less than the traditional butyl rubber inner tube, reduce the burden on the bicycle, and make the ride lighter. Recyclable TPU Material: ACEROMT 700C INNER TUBE made of TPU (thermoplastic polyurethane elastomer material), tpu inner tube is made of green and environmentally friendly thermoplastic polyurethane material, which can achieve 100% recyclable. Buy with Confidence: ACEROMT TPU Inner Tube comes with Metal Tire Lever and Tire patch kits. After you receive our TPU inner tube, no matter what problems you encounter, you can contact us at the first time, and we will provide technical guidance and after-sales guarantee. 2-Pack TPU Inner Tube 700c x 18-32c with 45mm 65mm 85mm Metal Presta Valves, 28g Lightweight 700c Bike Tube TPU Portable Spare Bike Tube with Bike Tire Levers and Bike Tire Patch Kit