Due to exclusive weft construction, we guarantee that each OMG Hair selection will have little to no sheddingstrand loss regardless of texture and curlwave pattern. Absolutely no fillers or silicon coating, Tangle free hair can be colored and lifted very easily.LENGTH CONSIDERATION: OMG hair is sold in length ranges. For Example, if you order one packbundle of 18-20inches, you will receive ONE bundle of 18, 19 or 20 inches. If you want your finished length to be 20inches, we suggest you order length 20-22 inches, just to be on the safe side.Each bundle weighs approximately 3.5ozTwo bundles are required for a full sew-in.