FORMA S.F. Sports Tennis Stringing Machine Tools Racket String Assistance Tension Calibrator for Tennis Badminton Squash Racquet Including Operating Hardware

Features

• -Spring tension calibrator for checking machine accuracy.
• Tension Measuring Device
• Connect between string machines to see the actual tension.
• The Racquet String Auxiliary Tension Calibrator is made from high-quality metal material and is an essential tool to ensure your racket strings are always at the correct tension level.
• This tool is a spring tension calibrator that checks machine accuracy and helps measure the string tension of a racquet, ensuring they are at the correct tension level and improving racquet performance.