This line is Uni-ballâ€™s highest grade and best-selling wooden pencil line. Each box comes in a plastic case and contains 12 pencils.
By popular request, JetPens has added the extremely popular Uni-ball Hi-Uni wooden pencil line to our selection of great products. For many pencil lovers, nothing can beat the satisfying feel of a real wooden pencil. The Hi-Uni set from Uni-Ball is a luxurious wooden pencil line with an incredible selection of 17 hardness grades. Pencils write in rich, dark and even lines. Beautiful to write with as well as look at, these new wooden pencils will be a marvelous addition to your art tool collection.
Pencil Lead Hardness (from Wikipedia)
Pencil lead is graded by hardness: a greater percentage of clay results in a harder lead. H (harder), F, HB and B (softer) are pencils of average hardness. Pencils ranging from 2B to 9B are softer still and are used for sketching; 2H to 9H are harder than average. A common American #2 pencil is equivalent to HB.
In order, the leads are (from hardest to softest) 9H | 8H | 7H | 6H | 5H | 4H | 3H | 2H | H | F | HB | B | 2B | 3B | 4B | 5B | 6B | 7B | 8B | 9B.
The harder the pencil the lighter the mark, e.g. Bs tend to a create darker colour that can be smeared easily.