A 'lacrosse ball' is the solid rubber ball that is used, in with a lacrosse stick, to play the sport of lacrosse. It is typically white, for Men's Lacrosse, or yellow, for Woman's Lacrosse; but is also produced in a wide variety of colors.
The old NCAA specifications are:
- 140 g – 147 g
- 62.7 mm – 64.7 mm
- From 1,800 height 1,092 – 1292 mm (70% rebound from falling point)
- Rubber content
According to the 2015 and 2016 Men's Lacrosse Rules and Interpretations: "The ball shall be white, yellow, orange or lime green smooth or slightly textured solid rubber. The ball must meet the current NOCSAE lacrosse ball standard." Later, in further defining the required specifications, the document states: "The measurements for the ball shall include the following: The ball shall be of white, yellow, or orange solid rubber. The ball may measure between 7 3/4 and 8 inches in circumference. The ball may weigh between 5 and 5 1/4 ounces in weight."
Beginning with the 2014 season, all three governing bodies for lacrosse in the United States (US Lacrosse, NFHS, NCAA) have mandated that only balls meeting the NOCSAE ball standard may be used for competition. Balls must be emblazoned with the words "Meets NOCSAE Standard" in order to be deemed legal for play by game officials.
Starting no earlier than June (exact date unknown) 2016, all lacrosse balls will have to meet the new NOCSAE Standard.
Guardian recently developed a new ball—the Pearl—made entirely of polyurethane. According to its website, it was named the official ball of U.S. Lacrosse in July 2016. Traditional lacrosse balls are made from all natural rubber, and are the official ball of all other organizations.
Brine is the exclusive supplier of lacrosse balls to Major League Lacrosse. Signature Lacrosse is the exclusive supplier to the National Lacrosse League and Federation of International Lacrosse, and is also used by most prominent NCAA programs.  . In Canadian box lacrosse all balls must be Canadian Lacrosse Association (CLA) approved; the main brands used are Gait and Signature.
- "2015 and 2016 Men's Lacrosse Rules and Interpretations" (PDF). NCAA Publications: 2015 and 2016 Men's Lacrosse Rules and Interpretations. October 2014. Retrieved May 3, 2017.
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