A simple device that allows you to narrow the taget hole in 4 stages ranging from 5cm to 8cm, Can be used on any flat surface or fits inside a standard golf hole. What they say. Constant practice to a standard sized hole results in lapses in concentration that ultimately can affect concentration on the course. Practicing to any of Putter Cup's four levels aids concentration and creates many new levels of challenge for your putting practice. There's little to be gained from missing putts to a standard sized hole in practice. Whilst you may miss the odd putt when practicing with Putter Cups, you know the challenge is tougher and the putts you make are more accurate therefore building your putting confidence. Putt holed, putt missed - the standard putting practice routine. Putter Cups give you a simple solution to the potential boredom of putting practice. Set the challenge level, set the distance and set your record. Every time you practice with Putter Cups you have targets to take on and beat. This putt to win The Open. We've all done it, but in truth, if it was, the hole would look at least half the size. Well, now it does thanks to Putter Cups and that putt you make in practice is a whole lot closer to the pressure you will face when that putt on the 18th really does mean something.