The F7 is the most understable driver made by Prodigy Disc. This is one of the best drivers for beginners and players with lower arm speeds. You can count on this disc to always hold long turnovers. When thrown hard it will act as one of the best roller discs because of the wide rounded nose. The 400 series is a premium blend of material that is extremely durable. The unique blend of plastics feels as good as it looks and will be able to be broken in over time. This tour quality plastic gives the thrower better grip even when it is wet.