Court equipment brand Oncourt Offcourt has a great new tool for young players - the Quick Start 78 Green Felt Tennis Ball Case comes with 24 cans. Balls in a can help kids feel grown up so they begin to take tennis seriously, plus they retain their pressure longer. The numbering on the balls helps kids take responsibility for their own balls, while the high quality acrylic felt is durable enough to stand up to long hours of play. These green transition balls are just the tool your young athlete needs to begin to grow in the sport.