The Voulosimi 12 Pounds Natural Decorative Rocks are perfect for creating unique designs in your home. These rocks are made of natural materials that are durable and easy to use. With a wide variety of colors and shapes, these rocks are perfect for any project. The average size is 1/5″ to 3/8″, so these rocks are perfect for small projects. These rocks are also long lasting and will not deteriorate like mulch does.