To keep one end of each tool equal in weight

The design concept is good, and the real processing technology is difficult to achieve balance.

The target population of this design is not domestic children, but is sold to European and American markets. The target youth population is not dangerous. Rivets will keep the tool up with the lower shell. Only by using nails can the tool be pulled out from the side. It will not fall off under high-speed rotation. However, the product also has a service life. The frequent use of tools will affect the service life.

= = So if it is buckled out, is it another function or is it a rotating blade? Ha, ha, ha, it feels strange

If you rotate like this, you feel that you are playing with yourself ~ ~

In this way, this design is actually a combination of fingertip gyroscopes and daily tools, which include knives, nail files, mobile phones, card pins, small bottle openers and other daily tools. It can usually be used as a decompression artifact, but it is also a portable tool. It is mainly located in the European and American markets. Because there are still many people who like outdoor travel abroad, especially in Europe and the United States, who like this kind of products, camouflage color matching and compass are also combined later. However, this design is still quite controversial. Some say good and some say bad..

= = Functional combination, good and bad, normal

What should domestic children use?