The Denominator Tally Counter is the finest, most durable, longest lasting Tally Counter on the market today. These are 4 digit counters with a light touch non-slip key and a short stroke. The counter is reset by turning the reset knob to 0000. The covers, end plates and the base plate are extruded aluminum with a long lasting durable finish and all internal components are constructed with the highest quality corrosion resistant materials available. Our counters have been tested in excess of 10,000,000 counts without errors and are still counting. Our counters never need lubrication.