Tombow Monograph Sheer Stone Limited Edition Mechanical Pencil (0.5mm)

Features:

Its shaker mechanism lets you extend the lead with a simple shake up and down. To prevent the lead from extending in your pocket or pencil case, you can lock the shaker mechanism by pushing up on the clip.

The clip also acts as a conventional click mechanism, letting you extend the lead by pushing down on it.

A translucent grip area lets you see the pencil's inner workings.

A long guide pipe gives you a better view of where you're writing or drawing.