Paper Mate Clearpoint Elite 0.5mm Mechanical Pencil New technology helps prevent internal lead breakage that leads to lead jamming when the pencil is dropped. Convenient click-advance button on the side lets you easily advance lead without releasing the pencil. Comfort grip for added control, and visible lead supply lets you know before you run out. Twist-up eraser advances or retracts with ease, and leaves no messy residue.