Victor 12-digit calculator, 99901, hybrid power, 4-5/8″ x 6-1/2″ x 1-3/4″, white washable tuffcalc is water-resistant and shock-resistant. Ideal calculator for extreme working conditions. Design features a sealed rubber keypad and acrylic-protected display. Large 12-digit display is easy to view. Functions include tax +/- keys, backspace, grant total, three-key memory, square root and change sign. this product arrives to most customers in 2-3 business days.