Economical alternative for teaching, or just for practice from your hopper. Practice balls are generally slightly lighter/softer (making them easier on the arm) and are deal for indoor or softcourts, but may also be used for outdoor/hardcourts. Any ball that does not have a heavy uty felt (especailly a practice ball) will wear faster when using only 1 can to hit with. 6 dozen / Case 24 cans.