BL550活动铅笔0.5mm
彩色笔杆，金属笔夹，电镀笔尖。
舒适的握杆，书写流畅。
BL550 mechanical pencil
lead size：0.5mm and 2.0mm
colorful barre with metallic clip.It provides long lasting durability.
Perfect for advancing leads in top mechanism.
Smooth writing lead does not smudge and erases cleanly.
