Hero Arts Reactive Glitz ink pads offer stunning results on paper. They react to water when sprayed and dry with a shimmery metallic finish. The raised pad, measuring 3?? x 3??, easily inks stamps of any size, and are ideal for use with stamps and for creating colorful backgrounds. Use like a watercolor and works well for ink blending. Let air dry or use your heat tool for faster results. Non-toxic, long-lasting, and acid-free.