The ball is a tough leather-based-seamed spheroid, that has a circumference of 9 inches (23 cm). The ball contains a "seam": 6 rows of stitches attaching the leather shell from the ball for the string and cork inside. The seam on a new ball is popular and helps the bowler https://match44id21976.blogofchange.com/36179827/match-things-to-know-before-you-buy