Before that, there were two pumps, in which the supply wires became unusable (broke) in winter. This pump has survived. I took this as a gift to friends, they were satisfied. With its pros: 1. There are several modes (for example, you can pump up a ball or a cheesecake by setting the desired numbers and dimensions) 2. In winter, the power wire does not crack Has cons: In winter, in the cold, the back cover broke, and the nozzles were lost accordingly.