Derwent Graphic Pencils, Medium, Pack, 4 Count (39004) STURDY PRECISION  With a hexagonal barrel, you gain greater precision for drawings. Hard (H) degrees have a 2.2 mm core for sharp lines. Black (B) soft degrees use a 3.5mm core for softer lines. BROAD RANGE  Choose the pencil that works for you. Derwent offers a comprehensive range of 20 degrees to help achieve your vision. This set contains HB, 2B, B and 2H. VERSATILE EXECUTION  Our wide range lets you choose the pencil that fits your artistic concept. Whether used for blending, illustrations or shading, our pencils will help express your vision. STRONG CORE  The core sharpens to a fine, long-lasting point, great for emphasizing even the smallest details. The fine point allows for professional-level precision on your most intricate images. ACCESSORIES  For best results, combine with other Derwent products, such as Derwent Canvas Pencil Wrap, Derwent Sketching Paper Pads, Derwent Pencil Sharpener and Derwent Battery Operated Eraser.