This golf putting practice ring is designed to simulate the challenge of a real golf hole. The inner hole has a diameter of 108 mm, matching the regulation size of a standard golf cup. The outer diameter is 133 mm, with a tapered, sloped design that rewards precise speed control.

If your putt is too soft, the ball will fall short and not reach the center hole. If your putt is too strong, it will overshoot and exit out the far side. This design encourages precise control of both aim and speed, helping you develop more consistent putting under pressure.

Ideal for indoor and outdoor use, and printable in PLA or other common filaments.