Zebra Tect Two-Way Light Mechanical Pencil 0.7 Pure Black Mab42-Pbk

[Shake-to-Advance Lead Function ON] Turn the center of the barrel to the right to extend the lead simply by shaking it. [Shake-to-Advance Lead Function OFF] Turn the center of the barrel to the left to lock the weight inside the barrel, providing a low center of gravity for stable writing. [Drafting Pen Tip] Long, extra-fine tip pipe for a wide field of view and clear visibility of what you're writing. [Specifications] Barrel: Resin / Silicone ring grip included [Size] Overall length 149 x Maximum barrel diameter 10.5 mm / Weight 15.4 g