With Odyssey's revolutionary alignment technology, the ½ design frames the ball, helping to center strokes and improve your aiming alignment. Ai-DUAL Insert – for consistent ball speed across the entire face and improved forward roll. The Ai-DUAL Seven S, with its iconic shape, is a modern classic featuring an angular design that makes alignment incredibly easy. The short, slanted hosel creates significant toe hang, making it best suited for strokes with more rotation and arc.