Ai-One Insert Designed using Artificial Intelligence, Odyssey has created contours on the Aluminum backer of the insert which they co-mold to a White Hot Urethane striking surface to promote consistent ball speed across the face with the classic White Hot feel that Tour players and amateurs love. AI Window Odyssey designers and engineers developed a Panlite window, which is a unique automotive grade polymer, that allows the showcasing of the unique topology of the back of the insert. Unique Navy Blue PVD Finish Feature a beautiful navy blue PVD finish that really sets them apart and gives them a premium look. SL 140 Shaft A heavier steel shaft complements the heavier head, longer grip and longer overall length of the Cruiser models. Interchangeable Front Weights Removable weights allow you to dial in your head weight to your exact preference.