grip size on tennis rackets is the diameter of the handle on the bottom of the tennis racket.
It depend on the kind of racket it is if it is a over size racket it has more string then a normal racket.
The tennis racket is much longer and heavier than a racqetball racket as the handle is much shorter. But today, even the size of the head of the tennis racket is also usually larger than that of the racquetball racket, which is more standardized at around 107 sq. ins. Tennis racket heads vary greatly in size; but some are great than 130 sq ins.
According to the ITTF rules, there is no limit for the size of the table tennis racket.
To play tennis, basically all you need is a racket your size, tennis balls, tennis court shoes and tennis balls. Very Simple.
Table tennis rackets can be any size according to the rules.
According to the ITTF rules, there is no size limit for a table tennis racket.