BikeTube Fat/Plus Tube. Features: TPU tubes that provide a lighter and smoother ride than standard butyl tubes 50% stronger than standard butyl tubes Requires less inflation due to better air retention More than 70% lighter than traditional butyl tubes, save up to 1.8lbs with two tubes Includes 2 alcohol prep pads and 2 patches Specs: Model: Fat/Plus Material: TPU Tire Size: 26" Tire Width: 4.0-4.5" Valve: Presta Length: 48mm Weight: 140g