Winsor and Newton Artist CharcoalWinsor and Newton Artist Charcoal come in two varieties, Willow and Vine.Willow charcoal is very soft and produces a deep black favored by many artists.Vine Charcoal is less dark, tends toward a gray.Vine comes in a range of very soft to hard and Willow comes thick to thin.Sticks are cut to 6" in length, and comes either 3 or 12 to a box.Vine