General Pencil Co. Jumbo Willow Sketch Charcoal Set - Willow charcoal is a traditional medium for drawing. It is often used alone, or to layout sketches for painting. This charcoal will create velvety blacks. It also blends and erases for dramatic shading. This pack contains two sticks of charcoal (approximately 5-3/8 inches long by 1/2 inch thick) and one kneaded eraser.