What It Is:Inspired by Guerlain makeup artists, Eyeshadow Blending Brush N21 perfectly combines an exquisite, high-quality design with precise application to offer a flawless makeup finish. Four other face brushes and one eye brush are also available for flawless application of Guerlain's products when creating the entire makeup look.What It Does:The extremely soft yet strong bristles of Brush N21 create a flexible shape that allows eyeshadows to be worked with a light touch, for a result that blends seamlessly with skin and facial contours.How To Use It:For flawless application and a perfect makeup look:- Take up a small amount of eyeshadow with Brush N21.- Apply to the upper eyelid in back-and-forth circular movements to add the color evenly.- To allow the colors to fuse together and create an ombre effect, use the same brush to blend the edges of the eyeshadow, using light and gentle movements. This technique creates a perfectly blended, harmonious finish to eye makeup.