MMX 67mm (135 grams, 2.63 inch) This size balls is just about the same size as a tennis balls, and for most adults over 5 feet tall can hold 3 in one hand it is a good size for 5 ball juggling. You can also use it for 6-7 balls juggling as most people start with a pyramid of balls in for seven balls, so in one hand, 3 in your palm and one on top of the three balls.
