100 Fun Balls that are great for any ball pit, Ball Toyz play center or pool. Each ball is 3 inches in diameter. When it's too chilly to use an inflatable pool outside take it inside and fill it with Fun Balls to make a great play center! Brightly colored interactive fun. Constructed of durable, safe, non-toxic pvc/plastic material. Clean easily with soapy water. Encourages physical play and hand-eye coordination development.