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Mizuno

Kenko M-Ball Official Rubber Ball

Release Year: 2024

The Mizuno Kenko M-Ball (2024) is a JSBB-certified rubber baseball designed for Japanese soft baseball leagues. Crafted from premium natural rubber, this official M-grade ball delivers consistent performance, reliable bounce, and tournament-level durability. Weighing 138g with a circumference of 22cm, it meets strict official standards for competitive and recreational soft baseball play.

Specifications

TypeRubber Ball
MaterialNatural Rubber
CertificationJSBB Certified (M-Ball)
Weight138 g
Circumference22 cm
Mizuno ケンコー M号 軟式公認球 Specs & Review | Gears DB