Outdoor Sport, From 3 years
From Amazon
Swingballl PRO All Surface Tennis Ball Game Set, Swingball's Ultimate Outdoor Family Game for Ages 6+ to Adults, Real Tennis Ball and 2 Power Bats, Superior All Surface Base, Adjustable Height to 1.8M
OnBuy
Pro All Surface Swingball | Swingball's Ultimate Game for 6+ to Adults | Real Tennis Ball and 2 Power Bats | Superior All Surface Base