ATTAS 6☆ shaft using NANOLLOY technology, lightweight and high-performance. - Model Name: ATTAS 6☆X ATTAS Rockstar - Material: NANOLLOY - Brand: UST Mamiya - Sleeve: Varies by club number - Grip: 4 layers of under wrap 1w Callaway sleeve attached 45.5 inches, shaft length 113.5cm 5w Titleist sleeve attached 43 inches, shaft length 107.5cm The Rockstar combines distance and accuracy. It's a rare item, and genuine products are no longer available from the manufacturer. Made as a manufacturer's genuine custom product. The sleeves are also genuine, and both Callaway and Titleist are compatible with the latest models. Glass coating applied! UST Mamiya website https://ustmamiya.co.jp/library/ *Regarding club length, the length measured at a golf shop is used, but it varies depending on the measurement method and the year. Please be sure to check the shaft length before purchasing. *In addition to this, we are listing other bargain items such as shafts, heads, and Masters pins. Please take a look!!