The first was mentioned on the form and size of a rugby ball is made by the end of the 1890s. In 1892 the rugby ball track from November to November ¼ inches, a circumference (end) 30 to 31 inches and a broad range of 25 ½ to 26 inches. The rugby ball has a weight of 12-13 grams and has a hand sewn with eight stitches per inch. A year later, there were adjustments in relation to the weight of the ball, which introduced 13-14 ½ ounces of the next regulation in 1931, a reduced width was changed from 24-25 inches and the weight was 2.1 to 13 1 / 2-15 ounces in 1931 increased.
The International Rugby Board has the size and shape of a rugby ball under the Act 2 So now is a rugby ball oval and consists of four panels official, an overall length to 280-300 mm in diameter (end) of 740 770 mm and a size (width) 580-620 mm. It is made of leather or other synthetic material. It can be treated to make it water resistant and easier to understand. The Rugby Ball weigh less than 460 grams, or less than 410 and a pressure from 65.71 to 68.75 kPa or 0.67 to 0.70 kilograms per square centimeter, or 9 inch 5 to 10.0 pounds per square inch. The existence of free balls is allowed if the players or teams will not search for power by the bullet. The IRB also shows that smaller sizes can be used in games among young players.
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