1. Its pencil sharpener is specially equipped with automatic ink supply and automatic stop function, simple, efficient, safe and reliable. The handheld ABS plastic parts are durable, colourfast and recyclable. 2. Its pencil sharpener is very easy to use and suitable for schoolage children. Simply insert the pencil into the pencil sharpener, turn the pencil sharpener clockwise, and the pencil starts to move in the sharpener. When the resistance decreases, the crank rotates clockwise, and the pin starts to come out by itself. 3. The manual pencil sharpener features a quality, improved spiral alloy blade that can be sharpened up to 10,000 times. 4. Fast, laborsaving, the lead is not easy to break, and the tip is adjustable. Designed for 6.58mm diameter, painting, sketching, and charcoal pencils, including hexagonal pencils, round pencils, and triangular pencils.