The Spider Wood, also known as Chinese Azalea Root, is fairly new to the aquarium trade. It is often used to create a dramatic look or as a centerpiece. It requires pre-soaking, about 1 week before wanting to install. The Spider Wood will initially float. Comes in small, medium, or large size averaging about 8-20 inches in length. Spider Woods are very rare and not available at all times. Purchase while still available!