Porter Gill Scale Ring (3D Printed)

The Porter Gill Scale Ring (3D Printed) is a precision-manufactured calibration ring used to verify that throwing implements — such as shot puts and discuses — meet the diameter specifications required for competition. 3D printing technology allows for exact dimensional accuracy, ensuring this gauge delivers consistent, reliable measurements every time it is used. Implement certification is a required step before sanctioned competition, and having the right gauge tools on hand makes the process straightforward for coaches and meet officials. This is a practical, affordable tool for programs that need to verify implement compliance without sending equipment to an outside lab. Available at ST1 Sports for track and field programs that take implement certification seriously.