Tungsten alloy is right material for tennis rackets or the like to change the swing force and impact center known as the "sweet spot" on a tennis racket and more particularly relates to a snap-on weight that can be easily attached or removed.
All players have different swings and control of the racket although the swing fundamentals are the same. The intent is to make as square an impact with the ball as possible with the ball impacting as close as possible to the center of the tennis racket head known as the "sweet spot". But, size, weight, height, strength and other physical factors cause different players to alter the fundamental swing slightly causing "miss-hits" which in turn cause errors in the flight of the ball. A miss-hit, such as contacting the ball near the frame of the racket, will cause the ball to go in the direction different than where it is intended when the player swings.
Bango Alloy Technologies Co., Ltd.