Although PVC baseballs produced by different manufacturers may have minor differences in size, they generally show a high degree of consistency around standard specifications. The specific analysis is as follows:
As a baseball equipment, the size design of PVC baseball must follow certain industry norms and standards to ensure the fairness and competitiveness of the game. Although different brands may vary in production processes, material selection, etc., in terms of size design, they usually refer to relevant international or domestic standards. For example, the diameter is typically between 7.2 centimeters and 7.3 centimeters, and this size range is widely accepted and applied in various baseball games.
However, due to various factors in the production process, such as mold precision and material shrinkage rate, there may be slight differences in size among PVC baseballs of different brands. These differences usually do not affect the basic performance of the ball, but in extreme cases, such as when the size deviation is too large, it may have a certain impact on the batsman’s hitting feeling or the flight path of the ball.
In addition, different brands may also launch PVC baseballs of different sizes for specific user groups or usage scenarios. For instance, for children or beginners, PVC baseballs with slightly smaller diameters and lighter weights might be introduced to reduce the difficulty of hitting the ball and enhance safety. Although these customized size designs differ from the standard sizes, they are still designed to meet the needs of specific user groups.