will not buy again [SEP] ok so these are very pretty i have packs in my head in these photos they are very versatile and dye well they are thick and good quality tested human hairhowever there is a major flaw in this system every time i brush my hair i loose strands which would not be an issue except the metal at the bead stay put it s not an install issue it s a manufacturer error the hair slides of the metal u tip and then they are broken and done for i will be looking for a new nano tip brand randomly loosing strands and having the remaining metal lost in my hair is super uncomfortable