A99 Golf Putting Mirror Training Alignment New Aid Practice Trainer Portable with A99Golf Logo Highly portable and great for checking your setup on the green Poor alignment is the major cause of missed putts. Using the Putting Alignment Mirror will create confidence on the green Perfect alignment to your target and see your eyes over the ball The Putting Alignment Mirror is a small mirror that is great for checking your setup on the green. Keep it in your bag and use it for practice or warm up before a round. Attention - the 2pcs golf tees can only be inserted into green but not indoor carpert unless which is thick and deep enough to have the tee inserted and stood up, which can be used as 'putting gate' for practice . (Recommend to buy our "A99 True Feel putting mat" which is can used indoor for combing using the putting mirror togeher with "tee putting gate" feature")