The Kokuyo Milikeshi is an innovative eraser with 5 edge sizes in one implement! Using just one eraser you can choose from erasing with a sharp corner, a 3 mm edge, a 4 mm edge, a 5 mm edge, or a 6 mm edge! The Milikeshi was designed by visual designer, Mr. Yuji Baba, Professor Emeritus of Tohoku University of Art and Design. Available in black, white, or a double half-size pack. Dimensions: 55mm (full-size) x 23mm.