Babolat SG Spiraltek 17g Tennis String offers the perfect balance of durability, spin, power and comfort in a basic synthetic gut. Suits a wide range of players and is very cost effective. In 16g form, Synthetic Gut offers optimum playability with slightly more durability compared to the 17 gauge version. Spiraltek is made with a solid polyamide core and is wrapped with filamets to add softness and comfort. Reel: 660 ft/200m. This reel will string about 18 racquets. Babolat Tennis String 243124-17