The Ashaway Zymax 66 Fire Power badminton string is designed for players searching for explosive power and excellent tension maintenance. This durable multifilament string has a gauge of 22 (0.66mm) and gives you optimum toughness, improved elasticity and dynamic stiffness thanks to the ZyWeave core and a revolutionary BETA Polymer material. It is supplied in a set that is 10m (33ft) long.