Instructions
1. You can start practicing after fixing 4 corners with 4 balls Tee 2. The template can feedback the running trajectory of the club head and whether the face is correct 3. The face is too open or too buckled be reflected in the angular deviation between the actual face and the parallel trajectory 4. The face is not square, which directly leads to the deviation between the ball's running course and the target hole cup. 5. There are three pairs of holes in the middle to set the goal. There are deviation ranges of 0.5 / 0.75 / 1 degree. The correct putter can pass the ball through the middle of the ball T. 6. Inserting T on the trajectory line can set a more accurate trajectory, limiting the putting between the trajectories