High quality sharpener for easy, clean sharpening. Suitable for graphite pencils and color pencils, and all known types of pencils. With reservoir for clean use and storage. Safety screw. After use, the high-quality Sleeve and Sleeve Mini erasers and sharpeners disappear into a red, blue, or black cover, which not only protects against fouling, but also allows for precise control of the erasing stroke when open or as a useful container for sharpening dust. The Sleeve has already received an award for its ergonomics and user-friendliness: the 2007 ISPA Award in the “Back to School” category.