Using water-based media with china paints has many benefits, including easy brush clean-up with water, fewer fumes during the firing and the ability to add water to the paint mixture if needed. For more information on painting with the 'Waterbase Technique', order the Worksheet (G123) from the Doll Artisan Guild at www.dollartisanguild.org. Line Medium is an odorless, non-drying medium for fluid fine lines and strokes. Tinted pink for easier identification. Packaged in a plastic squeeze bottle containing 1 fluid ounce (30 ml) of painting medium.