Perfect Putter Alignment LaserThe Perfect Putter Alignment Laser is a 5mW 532nm green laser allows you to know where The Perfect Putter training aid is aligned in seconds. It gives you the ability to trace the line up and down all the way to the hole without the necessity of having a backboard and it works great outside on bright sunny days. It attaches to the back stand making it really easy to put it in and out. Works for putts of any distance.