The D3 is a stable driver designed for maximum distance. The D3 has the perfect stability to be your go to controlled distance driver, capable of holding long straight shots and hyzers. For high powered players the D3 will flip up and glide forward for maxiumum flight. 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.