Made of materials of the highest quality to enhance your creativity. The sturdy body & metal outer eraser nozzle is designed to give extreme level of stability while using it. In addition, this mono pen eraser is mainly use for making sharp or very fine details, other detailing can also be created using this eraser pen in sketched area. This eraser has 2.3mm core. Mono Eraser is a perfect Zero Mono Eraser for very precision work. It is generally used by the Artist when very precision detail work is needed. It is also used for highlighting the work in charcoal or graphite pencil.