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 069mm 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