ZooMed Betta Driftwood pieces are wrapped and sold individually.
Mopani driftwood is a dense, heavy natural wood which can leach non toxic tannins into the aquarium water. The tannins will naturally tint the water brown and create a "dark water" effect that simulates a natural river habitat - the perfect healthy environment for many types of tropical fish, reptiles, and amphibians.
Please note: These are SMALL pieces of driftwood generally 2" x 3-4", and are more likely to create a noticeable effect in aquariums under 5 gallons.
Recommendations: Soak your driftwood for a few days before use to reduce the tannins a bit. Keep fresh carbon in your filter to will remove the brown tint from the water if you don't like the look.