Brazilian hair extensions are 100% Brazilian human hair, it is silk, smooth and shiny. Brazilian hair is always the best-selling and top quality human hair. Its advantages is that Brazilian hair is durable, thick, silk, smooth and blends well with many hair textures and can last up to 2 years or longer with proper care. All bundles are 3.2 to 3.5 oz. All wigs are 250 density.