Includes: Each training kit includes 1 baseboard, 3 balls and 2 rackets. Kid's Racket Trainer: Watch your kid practice tennis today with a kid's 3 in 1 racket trainer. Practice: This racket trainer is perfect for solo training, attach the tennis ball to the base and practice serving, precision control and more. Age Range: Perfect for children aged 3 years and above. Portable: It's easy to take this game away on holiday, just empty out the water or sand from the baseboard and your child can practice tennis or badminton anywhere. Baseboard Dimensions: 15cm x 22.5cm.