The SERJOOC 6Pcs Natural Aquarium Driftwood Branches Wood Decor Fish Tank Ornament Trunk Decoration is a beautiful way to add style to your aquarium. Made from natural wood, these branches are perfect for creating a unique landscape in your tank. The average size of the branches is 4 to 6 inches long, making them perfect for use in most fish tanks. The wood is soft and will not cause damage to your fish or other animals.