Ace Line Discs come in assorted Colors. ProFlex has a similar look and feel to the 400 Plastic in the Prodigy line, featuring vibrant translucent colors and a reliable grip. ProFlex has less stiffness but will take longer to wear in than DuraFlex. The F Model OS gives players a longer fairway driver that has a consistent, overstable finish. It appeals to all skill levels as it still offers a nice bit of glide, standing up to flat when thrown hard. It still offers that reliability and consistency players look for in an overstable disc with a strong finish at the end of its flight. It also has a tendency to skip at the end for some extra movement and utility in shot making. F Model discs are a great introduction into "drivers". They're made for controlled, accurate shots at a long distance and have a smaller rim for a comfortable grip.