Special system with hypoallergenic Keratin at low melting temperature. Thanks to the Extension Class, you can turn your dreams into reality. In a short time, you can lengthen, thicken, make highlights and create various fashion effects. The very high quality of the hair used in the Extension Class will guarantee the maximum duration of your new look. The 50/55 cm long locks are available in various colors and in packs of 50 pieces.