This Root Wood is from the Indian Sunderbauns Mangrove Region and are very rare (you won't find this in your LFS) and each is a truly remarkable pieces of Root Wood. Each piece has many unique colors and shapes which you can view in our WYSIWYG online store. These pieces are sure to be a focal centerpiece. They will sink naturally, will not leach out and discolor your water and you can have something no one else has. There are a number of sizes to fit from a bowl to a 300 gallon show tank.