Product details:

Senior Flex. The Hot Launch C521 Driver brings a minimal offset design for maximum ball speeds and increased forgiveness. Diamond Face technology is a major breakthrough in face design, with 39 different thick and thin diamond shapes or "mini trampolines" behind the face, producing a much hotter face for higher ball speeds and increased performance on off-center hits. Extreme rear sole weighting creates high MOI for an extremely stable and powerful driver with straighter shots and high flying, powerful shots.