The Casio desktop calculators are ergonomically designed for right hand users. The keypad is configured in an innovative staircase design, with 3 degree inclination from right to left side. This causes less underarm torsion and hand wrist rotation, as it adapts to natural finger / hand posture. The staircase key shape enables perfect vertical keystrokes and thus eases the key typing, lessens burden and helps avoiding Repetitive Strain Injuries. Featuring a range of functions this calculator is perfect for everyday use.