Luxilon ALU Power 127 Spin is made with the same poly ether ether material that is in all the ALU Power strings. Spin, however, offers the player the option for extra spin in their shots. Spin's new pentagonal shape offers outrageous spin with great control and durability for those seeking a crisp feel with lots of bite. Perfect for players of all levels as a full set or hybrid.Gauge1.27mm16gLength40'Durability8TypePolyester