high quality Name: Golf track paper Function: can correct the trajectory of the putter Help you practice putting stability Use tutorial: 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 will be reflected in the angular deviation between the actual face and the parallel trajectory 4 The face is not squarewhich 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 05 / 075 / 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 trajectorylimiting the putting surface between the trajectories Model Number:Putter track paper Type:Swing Trainer color:As shown Material:PU size:77 x 215cm Package Contents: 1 x Golf Putter Putting Mat Only the above package contentother products are not included Note: Light and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is +/1-3cm