Hi-uni is Uni Mitsubishi Pencil's premium wooden pencil line with a selection of 22 hardness grades. These pencils write in rich, dark and even lines. Beautiful to write with as well as look at, these wooden pencils make a marvelous addition to any art tool collection. This set of 22 pencils provides all hardness grades ranging from 10B to 10H. The pencils come unsharpened, in a reusable aluminum case.