Premium rachet technology – allows for comfortable and fast sharpening, Unlike other Pencil sharpeners Attached dispenser drawers – an attached shavings dispenser doors allows you to clean the shaving easily but never lose the door piece Customizable sharpening – center dial in center allow for Sharp or blunt sharpening Tip saver technology – prevents over-sharpening, making your pencils last longer. This technology is exclusive to Bostitch Pencil sharpener 3 colors – get all 3 colors in one pack!