THICK 3.8 mm lead, soft, vibrant colour laydown. High-quality acid-free pigments in bright colours UNSURPASSED lightfastness means the colours won't fade over time compared to other brands WATER RESISTANT and smudge proof, High break resistance due to secural bonding process (SV) IDEAL for home, schools, college, office, colouring books, professional artists, pet portraits, landscape drawing, cityscapes and more AVAILABALE in a range of 120 colours as well as in tin sets of 12, 24, 36, 60 and all 120