The Tactile two pound scale, model ## 1590, is a raised dot scale designed for indiviuals who are blind or have low vision. The scale can be used for weighing foods or for postage and other purposes. There is a double dot every four ounces and single dots at every ounce in between. It is accurate up to two pounds and the zero adjust allows for the use of a container when weighing. WARRANTY: Stock items carry a 30 day guarantee.