Jindai Keyaki refers to wood that has been buried underground for hundreds to thousands of years, undergoing discoloration due to the effects of underground components. The characteristic of Jindai Keyaki lies in its color. It blends with the original orange-brown color of the Zelkova tree, creating a deep, unreplicable hue. These are rare woods that, due to certain factors, were buried underground instead of decaying and returning to the earth, and then remained preserved for hundreds to thousands of years. Because it is natural wood, no two wood grains are the same. The more you use it, the more it will fit your hand, becoming a unique pen just for you. Wooden Brown Mechanical Pencil - Material: Wood - Color: Brown - Clip: Yes Species card not included Thank you for viewing. Type... Mechanical Pencil Body Body Material... Wooden barrel