• Replacement Inner Tubes for 20" x 4.0 Fat Tire Bike, Mountain Bike, Folding Ebike, Electric Bicycle, Electric Motorcycle and Electric Tricycle.
• Premium Material: Made of high quality butyl rubber, 20% thicker tube helps prevent flats.
• Valve Type and Length: Regular Schrader Valve for better sealing performance, 35mm with valve core cap. Wheel Size: 20 inches.
• Easy Installation: Convenient to carry, quicker to replace with a lever and a pump within five minutes.
• Package Included: 2 Pcs 20x4 fat tire bike inner tubes.