Twelve leads per pack

7 mm — retractable mechanism — fixed steel lead guide

On standard lightweight sketchbook paper the alcohol-based ink will bleed through — high-density sketchbook paper or treated surfaces are recommended for controlled results without show-through

Squeeze the body of the pen to control the flow of ink

talens fine art charcoal sticks medium 5 6 mm 25 pcs Furious Twelve leads per packNatural willow charcoal sticks in a medium 56 mm diameter, sized for sketching broad shadow areas without breaking too easily while still allowing rotation for finer line control. Releases a rich, even black with minimal friction and blends smoothly with a stump, kneaded eraser, or dry brush. Material: 100% natural willow wood Diameter: 56 mm Quantity: 25 sticks Packaging: cardboard box Use: broad shading and tonal under layers for drawing or painting