This fine, pure hair is 100% unprocessed hair in natural black and brown colors. There are no fibers, no synthetic hair, no acid washing or chemical processing. The hair has a well-constructed double weft to ensure no shedding. The cuticle is aligned to ensure no tangling and allow the hair to last. This hair comes in straight, natural wave, deep wave and a natural curly texture and can last several years. The bundles are 3 ounces (oz).