Gamma 78 Green Dot Tennis Balls 3 Pack are soft full court balls used before moving kids to a standard ball. Great for kids ages 10+ on a 78 inch full court. Features reduced bounce and 25% slower than a standard ball so kids can hit full court with more control for long rallies. Two-tone color scheme visually aids in spin development exercises. Softer feel makes learning safer for children who may fear harder regulation balls.