, high qualityName: Golf track paperFunction: can correct the trajectory of the putter, Help you practice putting stabilityUse tutorial: as shown1. You can start practicing after fixing 4 corners with 4 balls Tee2. The template can feedback the running trajectory of the club head and whether the face is correct3.The face is too open or too buckled will be reflected in the angular deviation between the actual face and the parallel trajectory4.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 surface between the trajectoriessize: 78 x 21.5cmMaterial:PVCcolour:As shownPackage Contents:1 x golf track paperOnly the above package content, other 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.