Material Quality: Artificial synthetic fiber materials produced by low-temperature extraction process. Length: 16 inches and 20 inches (measured after straightening). Weight: about 100g/bundle,the other is 120g/bundle. Color: 1B#, P4/27#, 30#, 350#, 1B/30#. Package includes: Two synthetic hair strands packed in one bag: + random accessories(a crochet hook and some hair accessories).