Features 1、Made of high-quality TPU material, durable to use. 2、Good airtightness. 3、Lightweight design effectively improves performance. 4、Roll compactly for easy storage and transport. 5、Suitable for road bikes, good replacement for the old inner tube on your bike. 6、NOTE: Please do NOT inflate the inner tube where there is not outer tire and the pressure is over 2PSI. Lightweight TPU ultra-light inner tubes for road bikes, sold in pairs, suitable for 26*1.25/1.75 F/V 48L specifications. Made of lightweight materials with exquisite design, the tubes are characterized by their ultra-light weight, providing faster speed and smoother riding experience. They are suitable for road bike enthusiasts. Features: Made of high-quality TPU material, durable to use. Good airtightness. Lightweight design effectively improves performance. Roll compactly for easy storage and transport. Suitable for road bikes, good replacement for the old inner tube on your bike. NOTE: Please do NOT inflate the inner tube where there is not outer tire and the pressure is over 2PSI. Specifications: Material: TPU Type: 700*23/28 FV 60mm; 29*1.9/2.6 FV 48mm; 27.5*1.25/1.75 FV 48mm; 26*1.25/1.75 FV 48mm (optional) Package Weight: Approx. 46g-76g Package List: 2 * Bicycle Inner Tube Package List 2 * Bicycle Inner Tube