Manufacturer: Surpass Golf Product Name: KEEP ZONE IMPACT #8 Putter Headcover: None Length: Approx. 33.5 inches Total Weight: 546g Grip: Original Round Grip This is the trusty club that helped me win a lot at the Olympics! This putter features the "KZI insert," hailed as a revolution in putters, developed by Hoshitani, author of "The Law of Putts That Go In!" and a scientist in putting research. It boasts absolute straight-line performance!! Ball dwell time has increased by over 200%! This number revolutionizes previous roll! Previously, you might have experienced: - Ball stopping before the cup - Ball stopping short of the cup - Inconsistent distance control → The "KZI insert" will sink your putts. For a short putt of about 1.5m, when impacting the ball with the face of a conventional putter, the contact time is about 0.005 to 0.0007 seconds. In terms of putter travel distance, this is 0.7mm. On the other hand, with the KZI insert, the contact time is over 200% of the conventional type, and the putter's travel distance extends to 1.6mm. This action increases the amount of topspin, allowing you to hit the ball with a better roll and stabilizing direction. I'm selling it because I've accumulated too many putters and it's been getting less use lately, so I'd like to pass it on to someone who will cherish it. There are minor scratches on the sole and shaft, but they should not affect play. Please only consider purchasing if you understand that this is a used item. Jig Club Workshop Original Yamada Putter Oda Putter Fuse Billet Milled EPON Miura Giken Akira AKIRA AFD TRPX Masda Golf PROCEED JUSTICK KAMUI KAMUI VERTEX WINBIRD MAXSOUL MAXSOUL MIRAI MIRAI