4 Pack 26" Fat Tire Tubes 26 X 3.5/4.0 AV32mm Schrader Valve 26" Fat BikeTubes Compatible with 26 X 3.5 26X3.6 26X3.7 26 X 3.8 26 X 4.0 Electric Bike/Mountain Bike Fat Tire Tubes

Still searching for the most durable bike inner tube? Stop looking up now and try ours. It will exceed your expectation! Features: Made To Last: The bicycle mtb inner tube is made with steady and durable butyl rubber. It shows amazing sealing performance, ozone resistant, anti-aging and electrical insulation merits. Size Available: The bike tube 26×3.5/4.0'. It fits tire width 3.5/4''. Comfort is the first: The replacement tires ensure better shock absorption for upgrade riding experience. Your safety and comfort is our top concern.