* Color: Black
* Suitable for: Double use for tennis and badminton rackets
* Net weight: 40kg
* Working voltage: 100-240V
* Size: 100*44*109cm
* Intelligent computer automatic pound correction, precise to +-0.1
* Stable constant pull function
* Power-on self-checking system
* Store memory function, can set 4 groups of weight
* Pulse width modulate, variable speed can be available, protecting the string from hurting when the string is in tension
* 4 groups of prestretch, suitable for different string.
* Sensor automatic string control, improving stinging speed and avoid breakdown
* Three gears for speed
* Knot and pound increasing set, automatically reset after finishing
* “Menu” includes Chinese and English interface, function parameter
* Three gears for voice
* The voltage is 100-240V, suitable for any countries.
* LB and KG transfer function
* Pound adjust function
* Automatic back head function when over time
* Stringing head has the string protection system, which can adjust according to the stringing route.