Instructions: 1. Insert the pencil. 2. Turn the handle clockwise to sharpen. 3. Turn the handle counter-clockwise to remove the pencil and complete sharpening. A spring mechanism automatically corrects the pencil to prevent shaking. The upgraded gear structure is quieter. New Manual Pencil Sharpener: Automatic pencil feed design, simple and efficient, safe and effective, for easier sharpening. Suitable for various pencil shapes: triangular, hexagonal, round, etc. Suitable for pencils, colored pencils, charcoal pencils, etc., from 6.9 to 8 mm. Uses alloy steel blades, robust and durable, smooth cutting, smooth cutting surface, easy cutting, automatic broken core elimination design, not easy to break the core and jam, with a pencil sharpening frequency of over 3500 times. Adjustable pencil thickness design adjust the rear rocker arm to sharpen pencils of different thicknesses. Selected ABS material, sturdy, durable, and drop-resistant Large dustbin, easy to clean Non-slip bottom mat, more stable comfortable grip.