The Pearl - Greaseless Lacrosse Balls (White, Yellow & Orange - Meets NOCSAE Standards and SEI/NCAA/NFHS Certified; Blue No-Bounce - Practice) - Official Ball of US Lacrosse & Team USA NEVER GREASES - Our re-engineered material ensures The Pearl will not become greasy over time. Made in the USA BETTER PERFORMANCE - Consistent grip for every pass and shot. No more "Coach that was a greaser". OFFICIAL FOR GAME PLAY - White, yellow and orange only - Meets NOCSAE Standards and SEI-certified. Meets NFHS/NCAA specs. OFFICIAL BALL OF US LACROSSE - Proceeds from each sale go towards the US Lacrosse Sports, Science & Safety Committee to aid in their efforts in making sports safer. SAVES MONEY - Lasts longer than rubber balls - Mercer University's HC said it's the first time he has been able to use the same balls the following year.