Derwent Inktense Block Assorted Colours Tin 36 Blocks Watercolour SticksDescriptionSpecificationsShipping All the brilliance of our Inktense pencils but in a chunky block making it easy to cover large areas really quickly. Just like the pencils you can use the blocks dry but they come into their own when you mix them with water and the colour turns into vibrant ink. Once dry the colour is permanent and you can work over the top of it. Also ideal for using on silk and cotton! Contains Sherbet Lemon, Sun Yellow, Sienna