Cossot loved her sister's onigiri-shaped pencil design. But it needed the perfect instrument to sharpen it in its dull moments. And these sisters are anything but dull! So, Cossot turned this little block into an instrument to make even your dullest creative tools sing again. Even the pencil shavings turn out beautiful in the end. Moniers Dream Colored Pencils are also a perfect fit to make this a duet.