Acu-Strike Impact Golf Training Mat For Outdoors. Size: 19″ x 10″ After you see the Mark left on the mat, *Your Swing Path*, you can instantly begin to correct your swing. This will help you correct your predominant swing path errors because Now You Can See It.!……” NO MORE GUESSING”…….”Great Practice and Training Aid” The Acu-Strike Impact Golf Training Mat employs a special fiber fabric that is designed to leave a dark mark that shows you where your club head hit in relation to the ball.