Have a blast for hours with bright-colored balls to fill in your playpen, ball pit, or bounce house with the BalanceFrom Fitness Crush Proof Play Pit Balls with Reusable Mesh Storage Bag for Playpens, Bounce Houses, and Kiddie Pools - the amazing addition to your child's playtime adventures.Featuring 400 vibrantly colored plastic balls, each ball measures 2.3-inches in diameter making it an ideal size for small children's hands. The 6 radiant colors in this set include blue, red, pink, green, orange, and yellow. These playpen balls are crafted from a safe with no phthalate, lead, and Bpa plastic material. Designed to withstand 100 pounds of force, these crush-proof balls are durable enough for adults yet soft enough for kids so both can join in on the fun at the same time, guaranteeing that the ball pit for toddlers will continue to become a safe space for them.