Designed for players searching for great elasticity, minimum tension loss & extra durability, the Ashaway Zy Max 68 TX is a multifilament badminton string made using BETA Polymer technology for maximum dynamic stiffness & repulsion. It has a proprietary textured coating increasing stiffness & control & for long-lasting performance, there is a tournament gauge of 0.68mm (21). in addition, the string offers strong Zy Wea Ve™ core that holds tension better than traditional badminton strings. It ensures consistent, reliable performance & comes in a 200m (660ft) reel.