Derwent Academy watercolor pencils come in a convenient metal case with 12 different skin tone shades, allowing you to create depth and various dimensions in your sketches. You can use Derwent Academy watercolor pencils like regular colored pencils or as watercolors—apply a bit of water for a smoother finish in your drawing. Derwent Academy watercolor pencils feature a wooden core and high-quality water-based pigment, offering versatile mixing and thinning of colors. The skin tone set is especially designed for creating portraits. Instructions for a portrait project are included.