This willow charcoal pencil set is perfect for artists of all levels, from beginner to professional, providing an all-in-one drawing and sketching solution. Available in four sizes: small (4.5mm), medium (5.5mm), large (6.5mm), and jumbo (9mm). These professional charcoal pencils are an essential addition to your art supply collection. These exceptional compressed charcoal sticks contain flexible, high-quality charcoal without imperfections that cause scratching. They also sharpen easily with less breakage. The included packing box provides a perfect storage container to keep your art tools organized at home, school, or anywhere you create dynamic artwork or simply sketch ideas. Crafted from non-toxic, pressed pure black charcoal, these square sticks create a velvety surface. The very fine-grained texture allows for smooth and easy drawing and blending. These charcoal sticks are ready to use right out of the box.