The photron digital ring tally counter is small and compact design. 4 Digit lcd screen display. The circle round is adjustable. . Mechanically jumps by every press, quick reaction. Counts up to 0- 999 laps, runs, goals, strokes, overs, hits, people, goods delivered etc etc reset button help to zero clearing. Counter speed: as fast as you like it depends how fast you can press it. It is universally used as a counter in the public place such as in the dock, the bus station, also in daily use for counting the number. Ergonomic design, one hand operation long-life battery easy to read. Easy to use perfect for self lap counting rugged case bold display. Large function button light weight.