This is a marble-colored pencil from Koh-I-Noor, a long-established stationery manufacturer in the Czech Republic. It has a 5.6mm marble lead in a weighted metal body. When you draw a line, three colors – red, yellow, and dark blue – appear simultaneously or alternately, allowing you to enjoy the fun of random color combinations. Also, although the lead itself has three colors, various colors appear on the paper, such as purple where red and blue mix, and green where yellow and blue mix. The body has a gentle octagonal shape. It has a marble pattern design, but the marbling varies, with some having red as the main color and others having yellow as the main color, and so on. To extend the lead, press the knock button and the lead will slide out. Adjust the length by stopping it with your finger. To retract the lead, press the knock button while gently pushing the lead back in with your finger. By rotating and removing the tip of the knock button, you'll find a small sharpener inside. Please use it after taking out the lead. This item was purchased as a spare and has been stored. It appears to be sold out on various websites, making it a rare item. Refill: 5.6mm marble color, 6 leads per pack.