This ultralight bicycle inner tube is made of TPU material and designed to fit 700C wheels with 18/32C road bike tires. It features a Presta valve for easy inflation and comes in a vibrant orange color. The set includes a cassette/freewheel and is available in three different lengths: 45mm, 65mm, and 85mm. This inner tube is perfect for cyclists looking to reduce the weight of their bike without compromising on performance. It is durable, reliable, and easy to install. Whether you're a competitive racer or a casual rider, this inner tube is sure to enhance your cycling experience.