ACCUSPLIT AX850 Lane Timer/Pace Clock, Blue, 15-Inch A High-Quality Pace Clock Timer at an Economical Price With a 15 inch face, this clock-style timer is easy to see from far away It's perfect for swim training but also can be used for any other timing Push Button Start/Stop Counts up with 1 second resolution to 60 minutes then repeats Includes Manufacturer 5-Year Proof of Purchase Limited Warranty