Knobby Balls - Party Knobby Bounce Balls- 10 Pack 7" - Play Kreative TM This is for a 10 pack of colorful Knobby Balls Great for Babies to the Big Kids. Each ball is 7" in diameter These are lightweight & have a cool, bumpy texture Perfectly safe for kids, made entirely of soft rubbery material Note: balls shipped uninflated and colors may vary