MEETS NOCSAE STANDARD: SEI certified to meet NOCSAE Standard, these balls are also made to NFHS and NCAA specifications for high-quality performance. CHAMPIONSHIP BALLS: These lacrosse balls are the official balls of the IHSA, NHIAA, and DIAA championships. DURABLE: Each ball is molded out of premium rubber, making them durable and long-lasting. Ideal for all types of play, from tournaments to training. OFFICIAL COLORS: Available in white, yellow, orange, and lime green to meet all league standards. 12-PACK: Comes as a pack of 12, with packs of 3 and 6 available in White only.