Specially designed grain surface, finest composition rubber cover encases 2-ply 100% butyl bladder precisely wound with over 3000 plus yards of nylon to ensure excellent grip, proper ball control, accuracy in flight, perfect shape retention, maximum durability and softer touch. Self-lubricating and self-sealing replaceable valve ensures lasting air pressure. Designed to withstand tough indoor and outdoor play. Balls come in white with alternating color selections; yellow with alternating color selections; and the red, white and blue. One year guarantee in all balls.