Sketching should be a loose and simple artform. That's why Derwent Sketching pencils are available in three simple grades, HB, 2B and 4B. These pencils have a wide 4mm graphite core allowing you to quickly rough out a sketch before sharpening the point to add the fine details. This tin of 6 pencils contains 2 of each lead grade as well and a pencil sharpener.Ten Top Tips for Using Sketching Pencils by Linda Stevens -Use the pencils on their side to create a softer coverage. The Sketching Pencils have a fatter core so are ideal for this.-Initially use your pencil lightly, then press harder to create a light to dark tone.-Scrape pencil findings onto your paper using a sandpaper block. Rub over with your finger or paper stump to create a smoky effect.-Use a sandpaper block to shape the tip of your pencil.-Try crosshatching to builds up tone for shadows.-Lay a block of graphite down on the paper, scrape out a required design and then overlay with a darker pencil.-Make sure you keep a good long point on your pencil. The Derwent Superpoint Sharpener is ideal for this.-Touch the tip of the pencil lightly to paper and then drag it down so you produce thick and thin marks on your paper.-Try using your pencils on different paper surfaces for different results.-Using a battery eraser you can create the white of an eye by gently lifting the laid down pencil. Graphite is especially easy to remove if highlighting is required.