The innovative ratchet mechanism in Sonic's Ratchetta pencil sharpener makes hand-sharpening your pencils quick and easy. You no longer need to repeatedly let go and re-grip the pencil while sharpening! Simply rotating the pencil back and forth does the job. The mechanism is similar to that of a ratcheting screwdriver. The Ratchetta also has a compartment for shavings, and a lid for covering the pencil hole when not in use.
This Notification sharpener has a button that you press down before sharpening. As you sharpen, when your pencil point is sharp and ready, the button pops up with a click sound, notifying you that you are done sharpening. Thus your pencils are saved from over-sharpening.