The four treasures of the study and movable type printing are both by-products of writing. With the development of the times, the two gradually fade out of the vision of life. This product uses movable type printing blocks as textures, and can be taken down and used alone to recall the craftsmanship of our ancestors. The pens are connected by magnetic attraction. A pen holder is equipped with writing brush heads of different sizes and is equipped with heating plates, which makes it more convenient to use water-written ink. The bottom of the bottle ink has a replaceable seal, it can be combined by itself. Part of the texture and effect are expressed by yin engraving and bronzing technology. The four treasures of the study should be endowed with some modern elements and a sense of technology, so that they can be better integrated into the rhythm of people's lives.