?Oil based colour pencils, Exceptional Artist Quality, 100% FSC Wood ?Available in 144 Shades, Lightfast, Artist Grade ?Water Resistant, ideal for sketching, drawing, illustrating; Adult Colouring Books ?Hexagonal Shape, Lead thickness: 3.8 mm, Length: 175 mm, Colour: 144 Assorted Colours ?Available individually and in sets of 12, 24, 36, 48, 72 and 144