Double pencil sharpener with Faber-Castell reservoir High quality sharpener for clean and easy use. Compatible with all types of pencils: standard and jumbo. Suitable for conventional and colored pencils. Includes security screw. The quality of a pencil sharpener, especially the blade, is essential to achieve optimal sharpening of wooden pencils. Due to their rigid and hard leads, graphite pencils are sharpened finely and precisely. On the other hand, colored pencils, with their soft leads, sharpen bluntly and thickly. To ensure optimal sharpening, we recommend replacing the pencil sharpener regularly, as the blade wears out over time, which can lead to breakage of the lead. Brand: Faber-Castell.