This Alvin manual pencil sharpener is the perfect answer for easily keeping your art pencils razor sharp. Made out of a strong brass alloy, this wedge-shaped sharpener will be ready to use day after day. The sharpener comes with the ability to sharpen two of the most common pencil sizes: 7/16 inch and 5/16 inch. The blade in the sharpener can be replaced if it becomes dull, saving the expense of having to replace the sharpener. Sold in group of 12 per box, these sharpeners are a boon to anyone's art supplies.