The Rite in the Rain Twist Advance Mechanical Pencil has controlled & precise lead advance with a no-slip grip and smooth-gliding twist action. A corrosion resistant all metal mechanism advances and retracts the 0.9mm lead. A clip that won't get bent out of shape. Stainless steel wire grips tight to pockets and packs. Carry extra lead with you, thanks to a storage area located under the eraser of the pencil. Includes 12 extra leads in a reusable container. Size: 5.7" x .48"