The Odyssey Ai-DUAL Square 2 Square Putters feature a center shaft directly on the plane with the putter's center of gravity. Unlike traditional putters, even face-balanced models, this perfectly balanced design eliminates detrimental torque, remaining square to the putter's arc, or path, throughout the stroke. By removing unwanted face rotation from the equation, players will see markedly improved accuracy and consistency on the greens without changing their current mechanics. The Ai-DUAL lineup also showcases Odyssey's revolutionary Ai-DUAL insert. The idea for the insert was born from the company's quest to combine the attributes of its most effective inserts: the forgiveness of Ai-ONE and the roll dynamics of Microhinge. To accomplish this once thought-to-be-impossible goal, Odyssey leaned on Callaway's industry-leading artificial intelligence to design a dual-layer urethane insert comprising a soft outer layer and a firm inner layer. Like Ai-ONE, this innovative construction delivers consistent ball speeds and unmatched distance control across the face. Additionally, the insert works in conjunction with the deeper, more aggressive FRD grooves to promote the same optimal forward roll as Microhinge. The result is Odyssey's best-performing insert yet. A tour-proven shape, the Jailbird is an exceptionally stable and forgiving head with Odyssey's alignment-enhancing Versa technology. Odyssey Ai-DUAL Square 2 Square Jailbird Putter Features: Zero Torque design stays square to the putter head's arc throughout the stroke AI-DUAL, a dual-layer urethane insert with a soft outer layer and a firm inner layer, delivers consistent ball speeds across the face and a fantastic feel Forward Roll Design Grooves are deeper and more aggressive, with a 19� slope that improves forward roll up and down the face SL 120 shaft, developed based on Tour player feedback, is heavier and stiffer, ideally suiting this style of putter 2� of forward shaft lean presets the hands in a forward pr