The synthetic grinding wheels are produced through a manufacturing process specifically developed for sharpening edges with excellent results. There are six wheels, with different grits: 80/120/240/320/500 and 46. /80 (BLACK): developed for angle setting with our Carrot system. /120 (RED): developed for angle maintenance, suitable for compact winter snow, recommended for Baby/Puppy/Youth/Junior categories. /240 (YELLOW): this wheel leaves a less aggressive edge compared to the 120 wheel but allows for a more precise turn entry. /320 (BLUE): this wheel was developed to meet the demands of fast disciplines, leaving a slightly less aggressive and very smooth edge on the snow surface, but when the ski is edged, the ski’s response is immediate. This feature is very important because the athlete needs confidence at high speeds. /500 (GREEN): the 500 wheel shares many characteristics with the 320 but with one difference: it leaves an even cleaner edge, making it very suitable for courses with low slope where smoothness is very important.