The Upper Bounce Trampoline Pit Balls are the perfect plastic balls for any trampoline or ball pit. This set comes with 100 pieces of non-toxic, kid friendly play balls. These play balls are a great tool for building your child’s motor skills and are lots of fun! The Upper Bounce pit balls have been tested and exceeded all CPSC standards for a safe and healthy playing experience. Each ball measures 2.3 inches and fits perfectly in a child’s hands without being too small or too big.