All pieces will vary in width and height. Photos provided are a representation of what you will receive. As Dragon Wood is a natural product, coloration, shape and size differences will occur and are to be expected. Similar to Ohko Dragon Stone Dragon Wood pieces feature lots of holes, nooks and crannies for creatures to feed, hide and breed in. It can also be used to create stunning aquascapes. Plants such as Anubias, Ferns and mosses can easily be attached. Dragon wood is an intricate and unique piece of driftwood that will add tons of character to any aquascape. Dragon wood will release tannins for a period of time which can cause a slight brownish tint to the water. Dragon wood is a great choice for those that enjoy the look of Dragon Stone but want to have driftwood in the tank to help lower the ph of the water. Boiling the wood and having activated carbon in the filter will help remove a majority of the tannins from the dragon wood and the water column. Aquarium Dragon wood is buoyant and will float. Please ensure your piece is fully waterlogged prior to use in a planted tank or it will float upon filling the aquarium. A large stone or heavy decor may be placed on top to ensure a non-water logged piece of wood stays submerged. Soaking the wood for 2 to 3 days will make it sink and release most tannins.