ST Woods have been carefully developed to bring top-notch stability, sound and spin to your bag. The ST-230 woods now add exceptional ball speeds through the CORTECH Chamber. It encases a stainless steel weight with an elastomeric TPU that creates extreme energy, while moving weight closer to the clubface to reduce spin. The result is a big shift in stability and ball speeds on off-center strikes. ST-Z 230 is a low spinning, high launching hybrid produced hand-in-hand with Tour pro input, yet still playable for all levels with 4 degrees of adjustability. The ultra-high energy MAS1C steel face generates exceptional ball speeds and powerful, solid sensation at impact.