SHAKEHAND MATRIX
★The values representing the characteristics of Butterfly rackets are based on tests conducted by Butterfly's Research and Development Department up until January 2025.
★The racket characteristics comparison shows all rackets except for rubber-type rackets, but does not show information by grip or playing style (attacking, fast attack, etc.).
★The repulsion and vibration characteristics in the characteristics comparison chart are quantified by measuring the bounce and vibration frequency of the racket. The higher the value, the better the bounce and generally the less it will affect the hand.
PENHOLD MATRIX
* The numbers are based on the research conducted by the Butterfly Research and Development Department through February 2023.