blue sharpener is placed on a piece of paper on a desk and again by a hand

blue sharpener piece of paper desk hand pencil lead wood blade shavings manual electric batteryoperated transparent portable compact durable efficient userfriendly sharpening angle point chisel fine medium blunt school office artist professional helical dual triple automatic stop easyclean pencil holder grip nonslip twisttosharpen suction cup replacement blades sharpening stone honing guide sharpening oil sandpaper whetstone diamondcoated ceramic leather strop