A inkstone refers to a stone that grinds ink, and there are four tools needed for calligraphy, which is a unique culture of the Orient, which are called Munradaeu (Ji, Phil, Muk, and Yeon), among which a inkstone grinds ink.

The ink should be ground well and its own dark color should be visible. On the surface of the floor, there is a fine squirt, such as a whetstone, and the ink is created by pouring water and rubbing it against the ink. Apart from its simple function, it is sculpted in the margin of the inkstone, so the patterns show the emotions of the time.

In general, a inkstone reminds you of a black stone and a wooden stone that is commonly used in the market.

However, the Danyang Magnetic wall was called the Magnetic wall because the color of the stone was red, and the moisture absorption rate of the stone itself was extremely low, so once ground ink could be used for a long time, the ink would not dry, the color of the ink would not change, and the stone would be soft and hard, so there would be no residue. In addition to the richness of ink and the strength of the gemstone, the ground for grating does not wear out easily, so it can be preserved and used for a long time.

As for the inkstone, it can be carved into a variety of 傳統文, including 雲龍硯, which expresses the dragon and cloud with the best conditions, 日日, which expresses the sun and the moon, 神神, which expresses the turtle, 四友硯, which expresses the pine-tree-maehwa, and 국-四 표현한, which expresses the plum-nancho-chrysanthemum-and-tree.