Cricket ball

Cricket balls are made from a core of cork, which is coated with tightly wound string, and covered by a leather case with a slightly raised sewn seam. The covering is constructed of four piece of leather shaped similar to the peel of a quartered orange, but one hemisphere is rotated by 90 degrees with respect to the other. The "equator" of the ball is stitch with string to form the seam, with a total of six rows of stitches. The remaining two join connecting with the leather pieces are left unstitched.For men's cricket, the ball must weigh between 5.5 and 5.75 ounces (155.9 and 163.0 g) and determine between 8 13/16 and 9 in (224 and 229 mm) in circumference. Balls used in women's and youth matches are a little smaller.