20 X 4.0 Fat Tire Bike inner tube
Perfectly Fit: Our bicycle inner tubes fit 20 inches Fat Tire Bike Ebike Electric Bicycle.
Valve type & length: Schrader Valve Stem for easy inflation (Regular valves); 35mm (1.38 inches) with valve core cap. Wheel Size: 20 inches
Durable: Our Bicycle tubes are made of Premium butyl rubber, so it'll durable than average bicycle inner tubes.
What You Get: 2 Pack 20x4" fat tire tubes