Uni-ball Kuru Toga Mechanical Pencil: Stays Sharp Forever

If I had to go back to high school math class again, the Kuru Toga Mechanical Pencil is the only pencil I'd take with me. Why? Because it has a twist and turn mechanism that automatically rotates its lead to keep a perfectly sharp point every time you write. » 6/17/11 4:30pm 6/17/11 4:30pm