The Yonex REXIS 125 Tennis string 12M Set OFF White Cut Of Reel offers superior ball-pocketing and improved control for players of all swing speeds. The string is made with Nylon (Multifilament), Rubber Polymer, Capsule, and Fortimo™ materials, and has a gauge of 16L (1.25 mm). It is made in Japan and the item code is TGRX125.