Brand: DUNLOP Model: FORT 50 balls (used) Color: Yellow Use: Tennis balls These are used Dunlop FORT 50 balls. I used them on an omni court about twice a week for half a year, so some have lost pressure and are dirty. I think they can be used for your child's batting practice. Please only purchase if you understand they are used items (*^^*) #tennis #dunlop #FORT #tennisball #gymnastics #fort...#hardcourt #baseball #batting #ball