the event is for families with kids age 4 years through 5th grade, but if you have kids younger than that too, you can register kids 3 & under for training ground. this is a good deal if the ball works for you..... i grabbed a few dozen to play the winter months. now brushes are personal preference so if you like this style of brush i would get a second opinion from someone else who does too. free parking for up to 4 vehicles. in other words: a bit high-strung and stupid. we will be back every year! 