Uni Kuru Toga Advance 0.5mm Mechanical Pencil M5-559 BLACK body

The Kuru Toga use of an ingenious lead rotation mechanism that continually rotates the pencil lead as you write. 

A spring-loaded clutch twists the lead incrementally every time you lift the pencil from the paper. 

This allows a uniform wearing of the lead to create a conical tip shape that provides a fine, consistent line.

This Kuru Toga Advance features an updated "W Speed" mechanism, which rotates the lead twice as fast as standard Kuru Toga pencils so that the lead gets sharpened twice as quickly. 

Standard Kuru Toga pencils rotate the lead once every 40 strokes, while the Kuru Toga Advance rotates the lead once every 20 strokes. 

Features metal parts for smoother, more reliable performance.

Features a sliding lead sleeve (guide pipe) that protects the lead as you write. 

As you write and the lead gets shorter, the sleeve slides into the pencil, getting shorter along with the lead. 

The sleeve can be fully retracted when the pencil is not being used, protecting it from getting bent or poking a hole in your pocket or pencil case.