作者: Melvin Torres
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摘要: It is accordingly an object of the present invention to enable athletes, mainly baseball and softball players, learn practice proper swing position develop muscle memory for easy repetition that position. The particular utility indicating athlete whether or not each individual correct how further prevent any errors in form, barring lead arm improper, premature extension casting, example. may be portable used simultaneously with multiple components. also comprise a lanyard user efficiently swings without having retrieve training device. device comprises one main component thus avoids complexity safety issues inherent related art. shape comfort meet versatile needs athletes regardless age body type. enabling field example, arm, hands torso positions order hit more accurately power.