The colors and lengths vary. These were gifts, so I don't know the specifics. I was planning to make doll wigs and stored these unused. I believe there's a mix of heat-resistant and non-heat-resistant wefts. When applying heat, test in an inconspicuous area with a sheet of parchment paper in between. Set of 4 wigs in various colors, approximately 50cm long, suitable for various styles. - Colors: Black, Purple, Blue, Gray - Style: Wig - Quantity: Set of 4 - Length: Approximately 50cm Thank you for looking.