This solid, self calibrating stringing machine from Tecnifibre is designed for professional use & accommodates all sizes & shapes of tennis, squash & badminton rackets. The Ergo Pro is fitted with a graphic display with a user-friendly interface to let you enter functional settings & offers an over tension function for knots (1 pull), as well as an under tension function for cross-strings (multiple pulls). The pre-stretch function helps to avoid manual pre-stretching, while a dual action Clamp system allows one mechanism to clamp the string & a second to lock the base of the clamp. The machine has 5 tension speeds for various types of strings & rackets. It features a hand brake mechanism & a manual turntable lock for easy accessibility.