Pentel Graph 1000 For Pro 0.5mm Drafting Pencil ◆ Product Features ・ Smooth writing feel Thanks to Pentel's unique technology, the lead glides with maximum smoothness. You can write comfortably for long periods without stress. ・ Lead Hardness Indicator Window You can see the hardness of the lead you are using at a glance, so you can change the lead according to your purpose. ・ Rubber Grip It is easy to grip comfortably and reduces fatigue even during long writing sessions. ・ Low Center of Gravity Design Designed with writing stability in mind, this low center of gravity design concentrates the weight at the tip of the pen.