"These water-soluble blocks combine the versatility of Inktense pencils and the freedom of blocks, opening up an exciting world of endless possibilities. Perfect for covering large areas and creating free and expressive marks. Add water to create a pure, translucent, ink-like effect. Once dry Inktense becomes permanent so you can work over the top of it, and it's great for using on silk or cotton! This tin of 24 blocks contains Sherbet Lemon, Sun Yellow, Tangerine, Poppy Red, Chilli Red, Shiraz, Fuchsia, Violet, Iris Blue, Bright Blue, Deep Indigo, Sea Blue, Teal Green, Ionian Green, Apple Green, Field Green, Leaf Green, Mustard, Baked Earth, Willow, Bark, Charcoal Grey, Ink Black and Antique White."