Thank you for viewing. This is a drafting mechanical pencil, 0.3mm. [Size/Weight] Width 11mm x Depth 11mm x Length 141mm / 13g [Body Color] Black [Lead Diameter] 0.3mm [Materials] Body = ABS, Tip = Brass, Grip = Silicone rubber, Knock section = Brass/NBR rubber, Clip = Iron Born as a general writing mechanical pencil with basic drafting performance. I rarely used it and kept it in a pen stand, but I am selling it to declutter. Please understand that this is a used item before purchasing. Please refrain from price negotiations. Instant purchase is OK.