New Standard Compatible Match Ball / Softball 12 inch (Old No. 3 Ball) Naigai Certified Ball 1 Dozen / Softball Match Ball Rubber Ball Junior High School High School General 12 Balls NG-136701 naigai-12-1d New standard starts in the spring of 2026! Get used to the 12-inch ball ahead of time. From April 2026, the softball (old No. 3 ball) used in junior high school, high school, and general play will be switched to the new standard 12-inch ball. This is a Naigai certified ball that supports the new standard. The basic specifications of diameter, weight, and rebound height are the same as the old No. 3 ball, but the seam height has been changed to 0.8mm, improving grip and spin stability. The seams are closer to those of a leather ball, providing a realistic feel and stable rotational performance. Because there are differences in the feel of the ball when hitting, gripping, and fielding, it is important to get used to the "feel of the new ball" by introducing it early in practice. As an official certified ball, it can be used for practice as well as official games in 2026. For those who "want to play without any discomfort in the real game" and "want to get used to the new feel early" [Brand Name] New Design Naigai Softball Certified 12 inch 1 Dozen (12 balls) [Part Number] NG-136701 [Size] Circumference 30.48 ± 0.32 cm [Weight] 190 ± 5g [Seam Height] 0.8mm [Color] White [Remarks] ・12 inch ball (old No. 3 ball) ・(Public Interest Incorporated Foundation) Japan Softball Association Certified Ball