Premium Material: With 2mm thick sythetic rubber (butyl) that absorbs shocks, bumps and hollows won't allow to affect your riding experience and safety. Let's begin the adventure ! Safety First: We designed this inner tube to be puncture resistant. Prevent damage, destruction and injury to the rider. Safe in any season or weather condition. Dual purpose: Designed specifically for motocross and enduro use. Our mission is providing the good inner tube and to be your support in anywhere. Tube Features: Seamless construction and Heavy duty durable TR4 valve stem. Fits for most electric dirt bike brands like Surron and Segway