Before purchasing an inner tube. please check whether the original inner tube is an American valve or a French valve.and its size. so that it can not be installed after purchase.

Brand: Kenda
Material: high quality butyl rubber
Model: 20 * 3.5 / 4.0
Valve: American valve
Length: AV32mm
Weight: about 360g
Origin: China

packing:
1PCS


Reminding
The inflation of inner tube alone will be greater than that of outer tube, which will affect the service life of inner tube，The tyre is a sealed air bag, which can not bear high tyre pressure and pressure of inner tube，It depends on the outer tube.

Almost all inner tubes, as long as they are inflated to a certain degree, will present the phenomenon of uneven thickness,The same is true for imported tires, if the tire pressure is very low.
There will be large deformation, which may be a little problem! Please don't
Tangle this problem, will not affect normal use at all.

The inner tube can only be filled in the outer tube, is the correct way to use!