No battery required; Count up to 9999 Instant reset knob and comfortable finger grip Single lap and repeat counters are ideal choices for various sports training activities The package includes: 1 tally table What you will get is: This package contains 12 red counter clicks, enough to meet your daily use and replacement needs, with a maximum count of 9999 No battery required: These click counters work together with mechanical components, so you don't have to worry about power issues, as power may cause 4-digit numbers to disappear or be arranged out of order at regular intervals; In addition, they canaccurately and clearly display four numbers Widely applicable: These digital counters are suitable for most situations, such as schools, offices, laboratories, sports events, golf, bars, airports, warehouses, concerts, etc., and can be used for tally, guest counting, etc