1/2 pound - Naturally River Tumbled - Rainbow River Pebbles Non-Polished. They are in various natural shapes and range in size from approximately 1/4 to 1/2 inches. Their colors when dry are beautiful natural pastel rainbow colors. When you wet them they become very vibrant in colors!!! You could use them around plants, in fish tanks, for crafts projects or where ever your imagination leads you. If you sprayed them with a clear shinny finish they would remain very vibrant in color or you could just enjoy the beautiful natural pastel colors and wet then when you wanted to have them change in color. We have shown you a picture of them when dry and when wet.