Disctroyer, a manufacturer from Estonia, was created by two disc golfers who were searching for a way to make quality discs that would be color-coded for easy selection and top performance on the course. They worked to perfect their desired plastic blends to feel exactly how they wanted, then worked on their color and design coding to become the first company with color-coded discs. These are the colors for the different discs, as determined by the largest, outside color on the flight plate: WHITE = Distance Driver YELLOW = Fairway Driver RED = Mid-Range BLUE = Putt & Approach Then the stability of the disc is indicated by the use of the following symbols on the center of the flight plate: CIRCLE = Straight Flight STAR = Overstable Flight PLUS SYMBOL = Understable Flight