Hi-uni Graphite Pencils are known for their smooth laydown as they create rich, dark, even lines in drawings and sketches. The Hi-uni Graphite Pencil Set includes 22 different hardness grades, one each of 10H, 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, F, HB, B, 2B, 3B, 4B, 5B, 6B, 7B, 8B, 9B, and 10B, in a...