The ball is a hard leather-based-seamed spheroid, that has a circumference of nine inches (23 cm). The ball features a "seam": six rows of stitches attaching the leather shell with the ball for the string and cork interior. The seam on a new ball is popular and helps the bowler https://raymondaipws.shotblogs.com/indicators-on-match-you-should-know-49510280