First, pins can be used where people have nothing. For example, if you want to hang a bunch of rayon flowers on a person's chest, you can hang them with pins for glory flowers, wedding flowers and so on. And it's strong enough, don't worry about it falling.

Second, it can be used for some position markers. If someone wants to cut a piece of cloth and calibrate the size of the anchor point, they can use a pin to tie it to that anchor point, which is much better than other positioning marks and will not leave obvious positioning marks.

Third, embroidery often uses pins. It is mainly to fix some pattern templates with pins to avoid the dislocation of patterns and embroidery boards, which will deform embroidery and waste embroidery cloth and time.

Fourth, stitching Chinese knots and other embroidery works also needs the role of pins, mainly because some connection points of pins have a slight fixing effect, so as not to confuse embroidery works.

Fifth, the pin is also an indispensable tool on the desk. If there are only a few bills or documents, there is no need to bind them together with staples or paper clips. Staples are difficult to disassemble and paper is easily damaged. Paper clips slide and spread easily. At this time, if you tie them together with a pin, you must tie the paper firmly.