Pro Hurricane offers maximum durability and spin. Recommended for hard hitting players that are looking for durability. Babolat’s Xtrem Futur Polymer technology offers superior elasticity (40% more than standard polyester) and very high resistance to abrasion, resulting in unparalleled flexibility and extreme resistance, that maximizes spin. Used by Andy Roddick, Fernando Gonzalez, Ivan Ljubicic, and Ashley Harkleroad. 18g avaialable in Natural only 16g, 17g available in Natural or Blue Reel: 660 ft/200m. This reel will string about 20 racquets. Babolat Tennis String 243104-18