To use the Pro Stringer you need a flat surface so you can clamp the racquet holder. The device itself comes flush against the racquet frame when it pulls the string to tension. Then you simply ...

head light Beam width: 25mm/23mm/20mm Stiffness: Flexible (64) String ... The X Force Pro could be as challenging for them to tame as it may be to find a demo version in a tennis shop.