The JOLLY Herbert sharpener is an electrically operated all-round sharpener for all pencil shapes between 6 and 12 mm in diameter. Herbert is suitable for pencils without a wooden case, round pencils and pencils with three or six edges. Its battery can be charged using the included micro USB cable. Herbert manages to sharpen pencils easily and quickly in 3 - 10 seconds. When the perfect tip is reached, it stops automatically - your pencil is now ready to use.