Colorfin-Brusho Crystal Colors Set. These are amazingly versatile watercolor ink crystals that can be used in a myriad of different ways. They can be used on paper, canvas or even wood. Sprinkle them directly on a wet substrate and watch intriguing organic patterns appear almost like magic. Or sprinkle on a wet brush, painting knife, or texture tool to create a variety of effects. You can dissolve them in water and apply them in a spray bottle, or add them to wax paste or gel mediums for body. This package contains twelve crystal colors and one instruction sheet. Non-toxic. Acid free.