Blind box stationery means that the outer packaging of blind boxes is mainly "blind", and there are many surprises. There will be no notes on the box, and only by unpacking can you know what is inside. The text printed on the outer packaging of the box is also very attractive: The chance of winning is beyond your imagination, and you will earn it if you buy it. If you are lucky, you can buy valuable stationery for five yuan. If you are not lucky, you may only get an eraser or a pen that costs one yuan. Its model is similar to the previous crisp noodle cards and gashapon marketed in Japan.

The blind box originated in Japan. It is similar in logic to the simple noodle card game more than ten years ago. Today’s blind boxes are mostly trendy toys derived from various animation character shapes. The same series of blind boxes are divided into There are fixed models and hidden models, with different proportions. The hidden models have a very low probability of appearing.