Electric Pencil Sharpener by Humble Genius: Your best heavy duty, premium option for sharpening multiple pencil sizes and colored pencils in office, home or classroom. Dull is boring; get sharp today! Produces a smooth, sharp tip every time. Unique push-button cleaning system prevents jamming. Works well with regular and colored pencils. Fits 6 different sizes of pencils. Ideal for home, office, or classroom.