The 6Pcs Aquarium Driftwood Spider Wood Ornament for Fish Tank Natural Branches Decorations (4in-6in) is made from natural wood that is perfect for use in fish tanks. Each branch is a unique aquarium landscape material that does not harm any animals or plants. The package includes six small natural branches that are each approximately 4 to 6 inches long. These branches can be used for aquarium decorations or to create a natural environment for your fish.