Watercolor Liquid Metals offer a brilliant shimmery metallic finish in a variety of colors. This is an acid free watercolor. Add eye catching effects to any watercolor painting or paper craft project. These rich colors are packed in a durable, reusable, clear plastic, and peg-gable clam-shell container. Great for use in scrapbooks, memory books, greeting cards and more. Acid Free, Non-Toxic, affordable and long-lasting.