This compact, waterproof digital Lap Counter is a great training and exercise device for swimmers, runners, cyclists, and other athletes. It is also an excellent all purpose counter for anyone needing to count anything: inventory, attendance at events, customers coming into a store or a theater, microbes under a microscope, etc. It is a durable, easy to use counter that has just one purpose - to count things. There are no complicated operations or things to program; just one button to press when you want to advance the counter. One hand operation makes counting easy and leaves your hands free to do other things. The Lap Counter is created by an American company and comes with great customer service and a full one year warranty.