The ball is a hard leather-seamed spheroid, that has a circumference of 9 inches (23 cm). The ball contains a "seam": 6 rows of stitches attaching the leather shell with the ball into the string and cork interior. The seam on a fresh ball is popular and helps the bowler https://match44id21976.ampedpages.com/a-review-of-match44-id-62472144