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The D4 is the understable compliment to the D1 from Prodigy Discs. The D1 and D4 were the first 2 discs released by Prodigy. For the advanced player, the D4 will hold long turnover and hyzer-flip throws. A recreational player will find the D4 to be a straight stable driver, making it a great core driver.
The 400 Air series is a premium lightweight blend of material that is extremely durable. This is the same plastic used in the popular 400 Series, with the addition of tiny air bubbles into the disc that allow the disc to be molded at a lighter weight. 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.