Maximise your power and comfort with the HEAD Velocity MLT 17 1.25mm tennis racket string set in Black, featuring a multifilament core surrounded by thicker filaments that enhance the energy efficiency and provide power to your shot. Designed for a superior performance, the HEAD Velocity MLT 17 1.25mm Set features a low friction coating that ensures the strings realign after every shot for high spin potential. Generating a lively feel, the HEAD Velocity MLT is a great durable power generator for tournament or club players. Gauge 17/1.25mm Length 40ft/12m Composition Multifilament. Multifilament Length: 12 m diameter: 1.25 mm / 17 g, 1.30 mm / 16 g Optimum power and comfort Designed tournament and club players