Mosser Lee River Pebbles are all-purpose stones. There are many uses such as to retain moisture in plant soil, beautify indoor and outdoor containers, improve plant drainage, and create water and fountain designs. The small size is perfect for decoration and utility uses. These lightly polished stones can be used as a vase-filler for fresh or artificial arrangements. Perfect for terrariums and fairy gardens. They can be arrange in pots for better drainage. Packaged in a reusable plastic jar for easy storage.