Material : Plastic Dimension : 6" x 5" Automatic power off Battery operated 2 way power Durable and useful This calculator is perfect for financial professionals, travel or migrant workers. Other functions include quadratic and cubic equations, coordinate conversion, trigonometric functions in degrees and fractions, reciprocals, factorials, basic scientific functions, and more. With the large plastic buttons, you will not hit the wrong numbers anymore. They are really easy to press and make the perfect clicking sound. Brand No Brand SKU 100458777_NP-1020766938