These highly pigmented colored pencils have a smooth formulation and laydown, and a strong, blendable 4 mm core that sharpens to a fine point. Use for blending, layering, cross-hatching, and other techniques. Derwent ProColor Colored Pencils also feature a clean, no-dust formula. - Derwent ProColour Colored Pencil - Set of 17 with Wallet CaseProcolor Colored Pencils, 17 PIECES WALLET - This stylish wallet is perfect for the artist who loves to create outdoors. Small enough to fit in a bag or backpack, this set contains a selection of handy drawing media that includes two Derwent Graphic pencils (HB and 2B), 10 ProColour pencils (Buttercup Yellow, Deep Chrome, Primary Red, Cerise Pink, Imperial Purple, Spectrum Blue, Grass Green, Burnt Umber, Brown Ochre, and Ivory Black), a blender pencil, a metal pencil sharpener, a plastic eraser, and a 5.8" x 8.3" (A5 size) drawing pad containing 30 sheets of 165 gsm drawing paper that all fit nicely in the black, nylon case.