Whether it's unlimited creativity or the five times table, the answer is always the same: Giotto Robercolor!
Ideal for blackboards, these round chalk sticks are based on calcium carbonate, and come in boxes of 100 white chalks, or assorted colours. Robercolor sticks are made from real chalk from France and are dermatologically tested and dust-free. They glide smoothly across the board without scratching, leaving a clean, sharp line.
