Professional simple calculator-- large lcd screen: the huge large lcd screen clearly displays large numbers, which is also convenient to read from a distance and beautiful. it supports up to 12 display, and the mechanical large button calculator provides fast and precise keystrokes. Counting supply-- small size, light weight, easy to use and carry, and will not occupy too much space. Small calculator-- --exquisite workmanship and good materials ensure a and perfect details. Office calculating tool-- colorful calculator: the size is about 15.00x13.50x3.00cm/5.89x5.31x1.18in, with coffee and for you to choose, a cute desktop calculator. Calculators tool-- cute calculator: clean lines and retro keys. the thick frame size is suitable for desktop use and handheld use. the large round keycaps allow you to type easily with both hands to prevent fatigue. the ergonomically designed spring mechanism provides wrist protection.