The wilson portable tennis ball machine combines state of the art portability with the performance you expect from wilson it is lighter 38 lbs and more compact 22 x 14 x 20 than any ball machine with similar features the machine also includes a built in handle and towing wheels to enhance portability it has a capacity of 110 balls and ejects them at the speeds of 10 to 70 mph the machine enables you to play for 3 to 4 hours the tennis balls shown in the image are not included with