The Reko is an incredibly straight-flying putter from Kastaplast. This low-profile putter can hold any putt line and is a great choice for straight approach shots. It features a smooth shoulder and small bead which makes for a very comfortable feeling putter. Kastaplast notes that Reko is Swedish for good, reliable or decent, and this putter lives up to its name. K3 Hard is Kastaplast's firmest blend to date. Imagine K3 but a little bit stiffer.