The Ashaway Zymax 69 Fire is a durable badminton string providing high repulsion, explosive power and an excellent feel. It features a gauge of 21 (0.69mm) and prevents tension loss during stringing and restringing thanks to ZWV (ZyWeave) technology. The string guarantees reliable performance and uses revolutionary Beta Polymer technology delivering added strength, as well as improved elasticity and dynamic stiffness. It is supplied as a set that is 10m (33ft) long.