Football
A pebble-grained, leather-cased, tan coloured prolate spheroid containing a urethane bladder inflated to between 12½ to 13½ pounds. The ball weighs 14 to 15 ounces and is 11 to 11¼ inches with a long circumference of 28 to 28½ inches and a short circumference of 21 to 21¼ inches.
Wilson
Every football ever used in an NFL game since 1941 was hand sewn at the Wilson Sporting Goods factory in Ada, Ohio. The league’s signature football, “The Duke” is named after the late New York Giants owner Wellington Mara, whose nickname was Duke. Wilson provides NFL clubs with at least 24,960 official game footballs each season to use in games and practices.
Source: NFL.com