The Koh-i-noor Mechanical Clutch Leadholder 5.6mm Assorted Colours Set includes a mechanical propelling pencil and 5 colour leads. The set is intended for writing and drawing. The lead is moved in the pencil by pressing the end of the pencil, which opens the clamp and the lead is slid out. There is a sharpener in the end and the lead can be sharpened after screwing the sharpener out. The black pencil envelope has round profile, diameter 12mm. The pencil has a soft touch finish ideal for grip. 5 leads 5.6mm in diameter next to the pencil in metallic bronze, blue, green, gold, and pink; all packed in the plastic case with transparent lid.