Inner tube for 26" x 3-4.5" size tires.

26 X4" fattire bike tubes.  Perfect fit for 3" to 5" tires and come with a normal air stem (Schrader Valve.)  Made of high quality thick butyl rubber compound, which results in fewer flats, longer lasting and durability.  I run them at 20 PSI on my 4.5" fattire ebike that weighs over 120 lbs  and at 20 PSI they are rock solid.