Design minimizes sharpener-related lead breakage while preventing over-sharpening, to consistently deliver precision tips with minimal frustration. Visible-cutter and anti-clog gears make it ideal for all pencil types, including artist-quality colored pencils. Slip-resistant bottom keeps the pencil sharpener steady when in use. SafeStart electric motor locks the blades in place when the extra-large, easy-to-empty shavings bin is removed. By X-Acto.