Goldfaber Color Pencils and Goldfaber Aqua Watercolor Pencils contain highly pigmented 3.3mm leads with excellent lightfastness available in 48 bright colors. The Eco pencils are made from pine wood from sustainably managed forests.They are highly break-resistant thanks to SV bonding. The leads provide soft, rich color strokes. The round Goldfaber Color Pencil is smudge and water-proof. Goldfaber Aqua is hexagonal. It's fully water-soluble and permanent once the pigments are dissolved and dry.