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: SV15 18-622 28 x ¾ 20-622 28 x ¾ 22-622 28 x 7/8 23-622 28 x 7/8 25-622 28 x 1.00 28-622 28 x 1.10 22-630 27 x 7/8 25-630 27 x 1.00