The basics LR Series - LR1 (Slanted Liner) and LR2 (Lining) are 1/8″ slanted liner brushes made from synthetic fibers. The benefits The handles are matte and faceted for dexterous control of the brush. The uses All of the different series of Skin Illustrator Pro Brushes come with the same ergonomically designed handles which fit very comfortably in all hand sizes and they wont roll off of your makeup table. The bottom line The fibers are set into seamless nickel ferrules and made with solvent resistant base paint and adhesives for a legacy makeup brush.