This is a custom driver featuring a Callaway Big Bertha Alpha α 816 ◆◆ driver with a Fujikura Speeder661 EVOLUTIONⅡ (FLEX:S) shaft. This driver is a great match, combining the flexibility of the Speeder shaft with the Big Bertha Alpha α 816 for excellent distance. The BIG BERTHA ALPHA 816 driver has adjustable weights and a sleek black design that makes it easy to address and looks great. I was using two drivers, but I've decided to sell one. There may be some minor scratches and wear from use, but the Big Bertha Alpha α 816 is in very good condition due to infrequent use. Finding one in this condition used is quite difficult. A Callaway headcover (not the original) is included. ○ Club Head Type: Driver Manufacturer: Callaway Model: Big Bertha Alpha α 816 ◆◆ Driver 2016 (Japan Specification) Shaft: Original Carbon Club Number: 1W Loft: 9 ○ Shaft Manufacturer: Fujikura Model: Speeder661 EVOLUTIONⅡ For: Driver Flex: S Although it is a beautiful item, it is still a used item, so please understand this. Thank you for looking.