Made of high content butyl rubber and high purity raw materials
tires that last longer than other brands of inner tubes
Hold the air pressure.

Suitable for bike model: AV4
37-340 16 x 1 3/8
28-349 16 x 1 1/8
37-349 16 x 1 3/8
28-355 18 x 1 1/8
35-555 18 x 1.35