The Uni Kuru Toga pencil is truly - and literally - revolutionary.

When using a normal mechanical pencil at a typical writing angle, the lead point quickly becomes chisel-shaped. This leads to broader, less precise lines; and crumbling of the resulting sharp edge. The unique gear mechanism of the Kuru Toga rotates the lead every time it is touched to the paper, resulting in a clean cone-shaped tip which is sharp and resistant to breaking. Simple, yet brilliant. We've been using early samples from Japan on a daily basis since the end of 2008 and they really do work.

The KS version has a comfortable rubber grip, and an updated Kuru Toga engine that rotates the lead with less vertical movement, for a smoother action with less tip wobble.

There's a replaceable eraser under the push-button. Supplied fitted with 3 HB Uni Nano Dia leads - which are another innovation - being stronger than any previous lead due to some clever nano-technology.