If you need to replace a string depends on the type of racket and the amount that is has been played with. When it's time to replace the strings, you can often tell by the feeling. Your strokes do not feel as comfortable any more, it is time for a new set. One thing is certain, for a smooth game of tennis, good strings are crucial. Dunlop therefore offers a great range of strings for every player. From young to old, from experienced to inexperienced, there is something for everyone. View the full range from Dunlop above.