Luddite's First Writing Instrument: TechDraw Drafting Mechanical Pencil ● Product Name: TechDraw ● Lead Diameter/Color/Item Number <0.3mm> Black: LDB-MP1-03 <0.5mm> Silver: LDB-MP1-05 TechDraw is a drafting mechanical pencil that pursues clear writing performance and a modern design with Japan's outstanding engineering technology. Not sold separately. No price reduction. As it has only been used for test writing, it is considered to be in near-new condition.