We only use 100% pure authentic virgin hair directly from the temple. With a 1 year minimum life expectancy. Our hair is built to last, with proper care your hair can last well over 2 years. No synthetic fibers, fillers or animal hair is used. Our hair unlike a lot of our competitors is free of any silicone, harmful acids & our hair is co washed in organic products prior to being shipped to you. Each of our bundles is 110 grams.