B00DV60IKM Oncourt Offcourt QuickStart Tennis 60-foot Balls, (72-Pack)

. Same size as normal tennis balls butbounceabout 50% the speed of a regular tennis ball. Specifically designed for 60-foot QuickStart Tennis court. Comes in case pack of 24 cans (72 balls) ..
Make sure this fitsby entering your model number.
Same size as normal tennis balls, but bounce at about 75% the speed of a regular tennis bal
They are proven to help players of all ages slow down full-court play for maximum improvement
Comes in case pack of 24 cans (72 balls)