Discover professional classic lashes for natural and elegant eyelash extensions. RZ Lash offers premium Classic, Flat (Ellipse) lashes in 0.07, 0.10, 0.12, 0.15 and 0.20 thicknesses in both black and brown. Flat (Ellipse) lashes are lighter than traditional classic lashes, provide a larger bonding surface for improved retention and create a darker, fuller lash line without adding extra weight. Available in a variety of curls and lengths for professional lash artists.