This is a mechanical pencil using stabilized wood with a tochi-chijimi grain and MDS1 hardware from Mishin Craft. Maximum diameter: Approximately 12.5mm Weight: Approximately 27g It can also be sharpened to a fine point. It appears bright due to the lighting, but the actual color is a bit darker. Stabilized wood is a hybrid material, both artificial and natural, made by impregnating natural wood, such as maple, with a special resin to improve strength and prevent expansion and contraction. *Please refrain from price negotiations as I am listing this at a low price. Please be sure to read the profile before purchasing.