The Luxilon ALU Power 125 Tennis String in a 200m reel is the flagship co-polyester string widely used across the ATP and WTA pro tour. Featuring Luxilon’s aluminum-fiber-infused co-polymer construction and a 16L gauge (1.25mm) profile, this Luxilon ALU Power 125 Reel delivers a balance of power, spin, and control built for advanced and competitive players. The 200m reel length is enough to string approximately 16–17 rackets, making it a practical choice for academies, coaches, stringers, and frequent players. With reliable tension maintenance and weather-resistant construction, this is the silver reel that dominates modern pro-level stringing setups across the globe.