Dashington Flat Rainbow Clear (iridescent) Gems, Pebbles (5 Pound Bag) for Vase Filler, Table Scatter, Aquarium Decor Gravel Accent - New Packaging Dashington High Quality Decorative Smooth Glass Marbles. Packaged in a double netted bag to prevent breaking open. Perfect for vases, bowls, craft projects, floral. Contains Approximately 400-500 Marbles Per Bag Approximately 3/4" in size Translucent - Light will shine through. Will have a reflective/shimmering/rainbow effect.