Heres value, dependability, and functionality all in one. In addition to a 12-digit easy-to-read display, a red/ black ribbon, and high-speed printing system, Swintecs 4600DPS electronic desktop calculator offers simple-to use features such as three memory registers, grand total memory, percentage, add-on/discount functions, and memory overflow protection. 12-digit easy-to-read display a red/ black ribbon and high-speed printing system Swintecs 4600DP electronic desktop calculator offers simple-to use features such as three memory registers grand total memory percentage add-on/discount functions and memory overflow protection. Large 9.6 mm 12 digit blue fluorescent display 12 Digit fully punctuated Display and print out 4-key memory Two-color printing (black and red ribbon) Grand total memory Three function rounding switch Right-shift correction key permits deleting the last digit entered Add-on or discount calculations Mark-up/mark-down Automatic constant Print/non-print Item count Decimal selector (A1 A2 0 2 4 6 F) Paper width- Regular 2 1/4" Dimensions: 9" (W) x 12" (D) x 3"(H) Weight- 4.6 lbs.