New, Unused Mark Kanai Collaboration Shaft-Specific Weights! These shaft-specific weights were created through a collaboration between Mark Kanai, a leading club analyst, and Tabata. They are made with a flexible hardness that easily conforms to the shaft, pursuing a sense of unity with the gear. We also focused on a size that is easy to apply to the shaft above the grip. While it is common to apply lead to the club head, this changes the overall balance of the club. By applying lead to the shaft, you can increase the total weight without changing the club's balance, and achieve a high-quality weight tune-up that brings out the club's characteristics. 5g x 2 pieces 10g x 2 pieces Lead size 47mm x 31.3mm Lead size 47mm x 62.6mm