Pentel QE517B Twist-Erase III Mechanical Pencil, 0.7 mm,  Barrel Pentel QE517B Twist-Erase III Mechanical Pencil, 0.7 mm, Red Barrel Sturdy, well-balanced barrel makes this the most popular twist-erase pencil. No smudges, no paper tears and no ghosts with the twist-up eraser. Maximum comfort and control with the latex-free grip.