Uniball Kuru Toga 0.5mm auto rotating mechanical pencil. Every time you lift the pencil the lead rotates slightly meaning you have clean lines every time. No need to adjust your grip. My
Uni Kuru Toga Roulette Gun Metal 0.5mm Rotation Mechanical Pencil M510 | Full Stop
The Best Mechanical Pencils | Reviews by Wirecutter
The Best Mechanical Pencils | Reviews by Wirecutter