The ball is a hard leather-based-seamed spheroid, that has a circumference of nine inches (23 cm). The ball contains a "seam": six rows of stitches attaching the leather-based shell of the ball on the string and cork inside. The seam on a different ball is popular and helps the bowler https://collinbksye.bloggerswise.com/43099857/match44-id-for-dummies