Concerning this item: The superior PBT fiber used to make BL extension lashes is incredibly flexible, light, and has a glossy finish. Eyelash extensions can be applied quickly and precisely with BL lash. For a simple and quick procedure, it is neatly arranged onto a tray so that the even curl, thickness, and length can all be seen at once. In comparison to other traditional synthetic lashes, mink lashes are more flexible and lighter. Each synthetic mink lash is highly glossed, curled, and tapered to resemble your own lashes exactly.