The Revolutionary KBS 1 One Step Putter Shaft is here. Designed by Kim Braly, Master Shaft Engineer and Director of R & D for KBS Golf Shafts, this groundbreaking and visually stunning shaft idea of the KBS 1 One Step Putter Shaft enables the player to have more flexibility in creating pure amplified feel, along with reduction in vibrations at impact for your putts to feel more accurate and stable with varying putter head weights per stroke for you to sink more putts on the green. The KBS 1 One Step Putter Shaft is One Step closer to perfecting your putting game. Player Driven. Tour Proven.