Size:20 26 Inch Latex Inner Tube, Specifically designed for Fat Tire Bikes. Durable & Safety: Premium Latex and odor-free rubbers absorbs shocks on bump road, making your riding more comfortable and safer. Lower Rolling resistance: The bike inner tube is made from high-quality natural Latex rubber, More flexible and thinner. You'll save 4-5 Watts using Latex inner tubes over butyl tubes. Highly Puncture Resistance: Latex inner tubes are more puncture-resistant. Gas nozzle cap prevent the bicycle inner tube from blockage and contamination, which is highly increased the Air tightness of inner tube. Application: Fits great on fat-tires bike, fat-tires ebike, electric-bike, mobility scooters, scooters and so on.