【Weight & Size】Weight: 20 pounds, Size:3-4 inches. The rock is natural not man made. So the stones are heavy and 20 lbs is not a lot, please refer to the picture for the amount of area to be covered 【Large River Rocks】Mixed color natural stones are non-toxic and eco-friendly river rocks. These pebbles are unpolished and contain no added fillers and dyes. Stones are reusable,and will not fade or deteriorate with time. Dry and wet will display different colors and bring out different beauty 【Decorative Rocks】They were pretty clean. Create a natural habitat for your reptiles with these stones. The smooth and flat surface provides a safe and comfortable environment. 3-4 inches is large enough that it won't be eaten into the stomach 【Garden Rocks Outdoor Landscaping】20 lbs pebbles are ideal for all large gardening, fountain, walkways, ponds, flower bed, grass decor or landscaping projects. Erosion control, Water retention in the soil and restrains weed growth 【Widely Used】Use these rocks for larger potted plants, aquarium, fish tank, fairy gardens, around trees, flowerbeds, meditation gardens, flower gardens, terrariums, table scatter and fire pit perimeter decoration. You can also use it to create paintings on the stone surface, even get the children involved and host a rocks party In the process of hundreds of millions of years of evolution, the pebbles have been subjected to the movement of the waves, the collision and friction of the gravel, and the stones have various shapes, patterns and colors. FANTIAN collects river rock stones from pristine beaches all over the world. All garden rocks are natural and non-toxic, color won't fade away through time.These pebbles have different shapes, patterns and colors. each pebbles unique.