A new series of monographs based on the popular matte black. The color development is also composed of dark tones and deep shades overall. The main body is equipped with a 5.3mm diameter black mono eraser for the first time. The erasure performance remains the same as the previous product (ER-MG), and the eraser has a more refined image and the eraser is less noticeable, leading to the maintenance of exterior attractiveness. The front metal fittings are painted black to reduce reflections and establish a wider field of view. In addition, in terms of exterior attractiveness, it has a sharper and sharper image. It has succeeded in creating a more sophisticated and luxurious feeling among products in the same price range.