Portable String Pressure Gauge Meter Badminton Racket String Meter String Machine Tools Tension Calibrator for Stringing _x000D_ Features: _x000D_ The specially designed badminton string tension tester allows you to easily measure the pressure value of the racket strings, helping you determine whether it is time to replace them with new._x000D_ With this badminton string tension checker, you can track the pressure value of your racket strings over time, allowing you to compare different spans._x000D_ By monitoring the racket pressure value, you can determine the right time to restring your racket and know which type of string to use. _x000D_ With its compact size and light weight designs, the badminton racket stringing tool is highly portable and easy to carry around._x000D_ It covers a range of 0-42 pounds, provides clear readings, and offers simple operate for easily string tension measurement._x000D_ _x000D_ _x000D_ Specifications: _x000D_ Materials: Plastic_x000D_ Size: about 8.3x8x5.5cm/3.27x3.15x2.17inch_x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1Pc Badminton Racket String Meter_x000D_ _x000D_ _x000D_ Note: _x000D_ Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color._x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_