The CS2 Putting Mat is a brilliant product. Use it for just 30 minutes a day and you will start seeing the results straight away. Perfect your putting stroke: set the rails for a square-to-square or flex the rails to create and arced stroke that works for you. The rails can be also adjusted to accommodate all types of putters as well as increase the difficulty of the putt. Place the ball on the hole located between the rails to ensure that the ball starts off on the correct line.