Rugby league is played with a prolate spheroid shaped football which is inflated with air.  A referee will stop play immediately if the ball does not meet the requirements of size and shape.  Traditionally made of brown leather, modern footballs are synthetic and manufactured in a variety of colours and patterns. Senior competitions should use light-coloured balls to allow spectators to see the ball more easily.  The football used in rugby league is known as "international size" or "size 5" and is approximately 27 cm (11 in) long and 60 cm (24 in) in circumference at its widest point. Smaller-sized balls are used for junior versions of the game, such as "Mini" and " Mod ". A full size ball weighs between 383 and 440 g ( and oz). Rugby league footballs are slightly more pointed than rugby union footballs and larger than American footballs.
Of the locations of teams in the Federal League, five currently have major league teams. Those are Baltimore, Chicago, Kansas City, Pittsburgh and St. Louis. Brooklyn has a New York–Penn League team, known as the Brooklyn Cyclones . (The major league Brooklyn Dodgers moved to Los Angeles in 1958, although the New York Mets have been located in the adjacent borough of Queens since 1964.) Buffalo and Indianapolis have International League teams, the Buffalo Bisons and Indianapolis Indians , respectively. Newark had a team, the Bears , in the independent Can-Am League , which folded after the 2012 season.