Breakthrough Golf uses a scientifically advanced multi-material design with new geometries never used in putter shaft design before. A shaft that has the same look, solid feel and weight as traditional steel putter shafts. The Stability Shaft delivers the face squarer at impact for improved accuracy and solid feel and has a lower launch for a predictable roll, resulting in better distance control. The install option will include installing the shaft on your putter. Simply mail it to us, we will install a new shaft and ship it back. This will also include a free loft and lie adjustment and a free lamkin deep etch grip, additional grips available for purchase. If you need help figuring out which shaft you need please email us.