A single triangular colouring pencil from Stockmar in Prussian blue (colour 18): a deep, strong blue. Handy for topping up a set or for having a spare of that one favourite colour.

The thick triangular shape sits comfortably in children's hands and supports a good pencil grip. The pencil is unlacquered, so you can feel the natural wood.

• Colour 18, Prussian blue
• Triangular, unlacquered
• Length 175 mm, diameter 10 mm