Youth Soft-ball Use BeyondMax Oval 78cm with Case Thank you for viewing. Purchased new around 2018 when the J-ball changed. J-ball compatible model. Used for about a year in a club team, and then stored at home. The grip has been changed to a Thai cup grip. The weight is approximately 580g based on the product number, but the actual measurement was about 610g. The Thai cup rubber is about 20g, so removing it would be about 590g. The difference in weight between the replaced grip tape and the original grip is unknown. Thank you.