Odyssey Ai -ONE Rossie S Golf Putter The Ai-ONE Rossie S is a classic Odyssey rounded mallet with bold alignment lines and a short slant hosel. It provides significant toe hang best suited for strokes with more face rotation and arc. This putter features the Ai-ONE insert with an aluminum backer and White Hot urethane striking surface and the new SL 90 Stroke Lab steel shaft. Features of the Odyssey Ai -ONE Rossie S Golf Putter Artificial Intelligence design and super-computing capabilities to create the most advanced insert in golf The multi-material construction includes unique contours on the back of the face that minimize ball speed losses on off-center hits, and greatly increase the sweet spot Ai-ONE urethane insert delivers more...