The Sketching Pencil Collection Sets by Derwent offer a complementary balance of drawing materials to render deep, rich tones and subtle washes of value. The pencils allow for detailed work while the sticks provide easy coverage. The water-soluble sketching pencils contribute the benefit of working both wet and dry for a variety of textures and layering. The Sketching Pencil Collection Sets of 12 and 24 contain a diverse assortment of drawing materials including tinted charcoal pencils, charcoal pencils, drawing pencils, water-soluble sketching pencils, charcoal sticks, and graphite blocks. Each set comes in a handy tin for protection and convenient storage. Size: 12ct.