ODYSSEY Ai-DUAL Half Ball #7S Putter with Stroke Lab Shaft, Official Japanese Product, 2026

Because it's a half-ball (half of the ball), misalignment is easier to see. A new type of circle alignment tool has arrived.
Odyssey has introduced a completely new type of alignment system that utilizes circles. The newly released "Ai-DUAL HalfBALL Putter" doesn't use multiple balls lined up like the 2-BALL, but instead cuts a single ball in half. The combination of curves and straight lines, including the black line in the center, is effective, making it easy to recognize the ball's alignment and the face's deviation from the target when addressing the ball. ■The significant effect of a semicircle made up of straight and curved lines: You can feel the difference from other models the moment you address the ball with the "Ai-DUAL HalfBALL Putter." The reason is the half-ball drawn on the front of the top surface of the head, as the name suggests. This is a new alignment system introduced by Odyssey. Because it is a semicircle, with a straight line in the front and a curve in the back, it is easier to feel the deviation between the face and the ball when addressing the ball than with a perfect circle, and by using the alignment line in the center to align the ball's alignment, even more accurate setup is possible. ■A soft surface that hits the ball and a hard interior, made of two types of urethane resin: As the name "Ai" suggests, the "Ai-DUAL insert" was designed by AI. However, unlike the Ai-ONE insert and Ai-ONE Titanium insert, it is made only of urethane resin, with a two-layer structure: a soft resin on the surface that hits the ball and a hard resin on the inside. ■An insert that not only stabilizes ball speed but also generates more forward spin: In the Ai-DUAL insert, the boundary between the two layers of resin has a complex, winding shape, similar to the back of the Ai-ONE insert. This was developed by AI with a focus not only on the stable ball speed performance of the Ai-ONE insert, where ball speed is stable no matter where you hit the ball, but also on the spin that is imparted to the ball. The Ai-DUAL insert is designed to consistently generate forward spin regardless of where the ball is hit, such as on the top or bottom of the face. ■ Grooves with an isosceles triangle-like cross-section also contribute to good roll due to forward spin: The newly adopted grooves, FRD (ForwardRollDesign) grooves, in the Ai-DUAL insert also contribute to good roll. ■ Achieves a feel and sound closer to the WHITEHOT insert: The "Ai-DUAL insert" has been given even more consideration to feel and sound. Because the "Ai-DUAL insert" is made only of urethane resin, it has a soft feel and is designed to have a sound closer to the White Hot insert than the Ai-ONE insert. ■ There are three standard models in the lineup. The "Ai-DUAL HalfBALL putter" can also be customized. Black Friday