Uniqueness Guaranteed: Every item is one-of-a-kind, making them ideal for all projects or designs. The Listing is for 1 Piece Avg Size Range: (2 to 3 inches) Sizes Vary Material Origin: (Not specified) Volcanic Lava Rock is a type of igneous rock that forms from cooled molten lava. Known for its porous and rough texture, it is lightweight and often used in landscaping, aquariums, and as a decorative element in various crafts. The unique surface of lava rock makes it ideal for essential oil diffusers and soil aeration in gardening. Custom Requests: Have specific preferences? Leave a message with your order, and we'll do our best to accommodate your requests if possible. Handmade items vary in size, shape, and color when selected randomly (the highest quality items are chosen first). They'll be as beautiful as those in the photos.