HEAD Stage 3 Red Tennis Balls (Carton of 48 Balls)First steps require help. The pressureless HEAD STAGE 3 RED TENNIS BALLS FOR KIDS is an ideal choice for children between 5 and 8 years old who are about to make their first steps on the court. It is significantly softer, bigger, and 75% slower than a standard tennis ball, which increases the reaction time and makes hitting the ball a lot easier and more fun. In addition, its red and yellow two tone felt makes the ball easier to see for kids. Designed