The CASTELL 9000 Jumbo is ideal for anyone who likes a soft pencil and favours smooth writing and drawing with a chunky shaft. The extra sharp graphite tip offers amateur artists and professionals alike a wide variety of line widths with even graphite laydown for writing, sketching and designing. Five grades of hardness (HB, 2B, 4B, 6B and 8B) are available for a range of effects, providing different shades of grey and depth effects