【PLATINUM/Platinum Pen】Limited Edition PRO-USE 231 Mechanical Pencil (Black/0.5mm) Retail Price: ¥1650 ■ Equipped with the "O-Lene Guard Mechanism" to protect the lead from external impact. First appearance in a lead pipe type! ■ Equipped with the "Pipe Slide Mechanism"! The lead guide pipe at the tip can be stored safely. ■ Rubber grip prevents finger slippage and supports accurate writing. ■ The lead hardness indicator on the eraser cap allows you to see the built-in lead hardness at a glance. ● Body Colors: Black, Blue ● Lead Diameter: 0.5mm ● Size: Overall Length 152mm (148.7mm when the lead guide pipe is stored) Maximum Diameter 10mm Standard Weight 17.1g ● Materials: Body/Body (Resin) / Clip (Chrome-plated metal) / Gripper (Rubber) / Taper (Chrome-plated metal)