5-second fast sharpening for 6-8mm wooden/colored pencils-sharp blade with 1 replaceable extra blade, prevents tip breakage, fits No.2, 6-8mm colored/sketch pencils. 3 sharpening modes: fine (outlining), medium (coloring), broad (crosshatching) for all drawing needs. Compact lightweight design, portable in backpacks/pockets-perfect for classroom, home, office and crafts. Dual power: 2 Aa batteries (not included) for wireless use, or Usb/adapter/laptop/power bank for indoor use. Large transparent shavings box (easy to empty); safety lock (inoperable if box is removed). Easy to use: align box adjust sharpness vertical insert & gentle press. Package: 1 sharpener + 1 Usb cable.