12 set Derwent technical pencils

Derwent Graphic PencilsAvailable in a range of 20 degrees from 9H - 9B.H stands for Hardness and B for ‘Blackness, F for Fine.The range available includes:The Technical (Hard) Graphic Tin of 12 pencils contains degrees B - 9H, perfect for detailed workThe Designer (Medium) Graphic Tin of 12 pencils contains degrees 6B - 4H,perfect for general design and drawing workThe Sketching (Soft) Graphic Tin of 12 pencils contains degrees 9B - H, perfect for freestyle sketchesThe Graphic Tin of 24 pencils contains degrees 9B - 9H,(2 of each of the more popular degrees, 2H, HB, 2B, 4B) perfect for all types of drawing work .