Head intellitour tennis string set ideal for tennis lovers the head intellitour tennis string set is designed for maximum control and optimum performance the head tennis string has rip technology and hybrid strings for racket tuning tennis string set designed for maximum control rip tour main 1 30mm 16g 6 5m 22ft rip feel cross 1 30mm 16g 5 5m 18ft rip technology hybrid string for racket tuning natural 16130mm