These are sockets for fairway woods, drivers, and sleeves, used when assembling or reshafting golf clubs. Socket Specifications: Inner Diameter: Approximately 8.5mm (0.335 inches) Outer Diameter of Base: Approximately 12.2mm Body Length: Approximately 12.5mm Color: Black New and unused. If you have any questions, please ask in the comments section. *I also use these sockets for FW, Titleist, and Srixon sleeves, and I have confirmed that there are no quality issues. *For those who prefer anonymity, tracking, or expedited shipping, please request the following shipping methods, as regular mail does not offer tracking, insurance, or weekend/holiday delivery. - Nekopos (anonymous, tracking, insurance): Add 70 yen - Click Post (not anonymous, tracking, no insurance): Add 50 yen Please contact me in the comments section before purchasing. I will change the listing after your request. *For those who want multiple items: Each additional socket is 220 yen. Please contact me in the comments section before purchasing with the number of sockets you need. I will change the listing price and content after your request. *I also sell four other types of sockets: "Iron/Wedge," "Iron/UT," "FW," and "Driver/FW," so please consider those as well. *Please check the dimensions of your shaft and hosel before purchasing. *Please read the profile section.