It is used for long distance touring. Because it is hard to puncture at the destination, carry the tube for repair, change the tube and put air in. I was at a loss which air to put in, but I realized that it was good for this product. Compared to other cheap products, there is no air leak, so we will not waste the stamina required for long distance touring.
It was difficult to carry with a 33 cm long body to the thick body, so the mouthpiece was damaged, so I replaced it with a short and thin pump. Short pumps are easy to carry, but pumping gets harder and cheap pumps are out of stock here. Gauges are also attached and can be used normally.