Thank you for viewing! This product is a stabilized wood maple burl mechanical pencil 0.5mm using Kato Metal 202 silver, supervised by Kobo Setsuri! It can also be changed to a ballpoint pen (KATO201). If you change to black, it's an additional ➕300 yen. If you change to gold, it's an additional ➕1000 yen. This is a handmade item, so please refrain from purchasing if you are looking for perfection. The thickest part is approximately 13.4mm. Weight: 27g The photos may appear brighter due to the lighting, but the actual item is a bit darker. Some corrections have been made as shown on the last page, but there are no problems with use. Stabilized wood is a hybrid material of artificial and natural materials, made by impregnating natural wood, such as maple, with a special resin to improve strength and prevent expansion and contraction. *We are selling at a low price as much as possible, so please refrain from price negotiations. Please read the profile.