The Derwent Twin Hole Pencil Sharpener is a manual metal sharpener designed for artists. It features high-quality, long-lasting blades that provide a consistently smooth and sharp point. With hole sizes of 11.5mm and 8.25mm, this sharpener is compatible with most standard pencils. The shavings are conveniently collected in the attached plastic reservoir tub, making cleanup easy and mess-free.