Fits multiple tire sizes:suitable for 28'' Gravel & 29'' MTB bike,compatible with many tire sizes: 700 x 32C-47C,29'' Mountain Bike,Presta Valve Length 65mm.The package contains 2 TPU inner tube patches and 2 tire levers.
Material:The Mountain bike inner tube is made of high qualityTPU material, which is abrasion resistant and more puncture resistant.Durable to be used for a long time.
Small and lightweight:Inner Tube for Bicycle Tire features a small size for easy storage, and is lightweight for you to conveniently carry it around.They are take little space in a saddle bag.
Reduce rolling resistance: the friction force generated on the tire is small, which can achieve the maximum speed and performance.
NOTE: Inner tube should not be inflated more than 4 PSI before install, otherwise it will be deformed or blown out.