Casio fx-991 CW Scientific Calculators gel pen - The colours are water-based

- The colours are water-based and non-toxic

On terracotta with a base coat of white first

Premium rollerball tip for ultra-smooth writing

Foldable and easy to carry

Casio fx-991 CW Scientific Calculators gel pen - The colours are water-basedHigh definition & 4 gradation display: With the 4 gradation display, the current input location is displayed in a darker color. Intuitive cursor operation: Simple cursor based operations and a key layout that follows the natural flow of use. High speed calculation Fast calculation for smooth performance in class or during examinations. Natural Textbook Display Intuitive, easy to learn icon display List display function for thorough, speedy learning