12-digit commercial dual power desktop calculator is equipped with 5/4 up/down rounding?? item count</br>Adding machine logic.</br>Four-key memory and independent two-key memory function change sign</br>Sold By THE EA</br></br>Product Description</br></br>SHRQS2130 UNITED STATIONERS (OP) CALCULATOR??12DIGIT??SOLAR</br><br/>http://www.amazon.com/gp/product/B00006B8GO