1SUPERIOR SPIRAL BLADE: The sketch pencil sharpener is made of premium spiral blade, the blade is made of premium alloy steel, it can be sharpened more than 4,000 times without wear and tear, and has a long service life. 2WIDELY USED: Hand crank pencil sharpener is perfect for charcoal pencils, art pencils, drawing pencils, sketching pencils, colored pencils with a diameter of within 8mm. 3DURABLE MATERIAL: Mainly made of sturdy ABS material, safe and harmless, won't fall and break easily, can withstand extreme wear and tear. The non slip pad on the bottom makes it more stable for sharpening. 4EASY OPERATION: Simply insert the pen into the clip and turn it clockwise while holding the sharpener, the pen starts to move inside the sharpener with each crank; when the resistance decreases, turn the pen counterclockwise and the pen starts to come out on its own. 5ANTI EATING PEN DESIGN: Sketch pencil sharpener adopts sketching special lengthening knife frame, knife head, more reasonable angle, the pen tip touches the contact point after the automatic idling.