This is the "Tect Two Way RO 0.5mm Mechanical Pencil," a high-performance writing instrument designed for drafting. ● Free-shake function (with lock mechanism): The lead advances simply by shaking the pen, enabling efficient and smooth writing. ● Equipped with a lock function, allowing you to turn off the free-shake function when needed. ● Low center of gravity design: Keeps the pen's center of gravity low, improving stability during writing. ● Tip pipe design: The pen tip pipe is made longer, making it easier to place a ruler for drafting, allowing for smooth movement, and providing better visibility of the writing area. 【Specifications】 Upper shaft: Resin, painted finish / Lower shaft: Brass, plated finish 【Size】 Total length 149mm x Maximum shaft diameter 10.5mm / Weight 22.5g 【Lead diameter】0.5mm 【Colors】Dark Black, Graphite Black, Metal White, Metal Silver, Navy Black Not sold individually. Price not negotiable. Retail price: 2750 yen Type: Drafting mechanical pencil Body material: Metal Other features: Bundle sale