This is a Royal EZVue pocket calculator. Instruction manual included. Battery is good. Face and numbers in very good condition. It has adding, subtraction, multiplication, division,calculation by constant, percentages, rising to powers, chain calculation, and memory calculations. Measures 4 x 2 1/2 x 3/8. Works fine. This would be perfect in many places. Like purse, desk drawer any place. Think Christmas gift!!!