Interestingly enough, there are no actual restrictions on thisRule 2. The04.01 of the ITTF rules simply state:and regulations states
The racket may be of any size, shape or weight but the blade shall be flat and rigid
(Rule But Rule 2.044.01 of4 states that the ITTF rules and regulations)rubber covering
So as long it doesn't overlap enough to be flappy, it can still be rigid. A minor overlap is not going to flap.
may extend up to but not beyond the limits of the blade