There is on occasions a misconception that a Mini Tennis Ball is in fact smaller than a standard Tennis ball. This is actually not the case, with the majority of Mini Tennis balls measuring approximately 64mm, the same as a regular Tennis Ball. The only exceptions to this are the oversized Mini Red Tennis Balls i.e. Price Red 75 and Karakal Solo 70 which measure 75mm and 70mm respectively. All mini tennis balls are of a low compression with a slower bounce than a standard tennis ball.