Wear them like great big bubbles; the fun begins the minute kids step inside our Buddy Bounce Outdoor Play Balls (BBOP balls) and bounce, bop, and bump them off other kids who are wearing one. Kids have a blast after blast with these play balls that naturally get them moving and laughing, bumping and bouncing. Adult assembly and supervision required. Set of 2 balls. Two kids can each wear one and have a blast bumping into each other. Keeps kids on the move and laughter on a roll for ages six and up.