REIKO KAZKI Cheek Brush N, 17cmUse this brush when applying blush or highlighting. Apply the face color to the brush and glide it over your skin. The finely wavy shape, similar to natural bristles, replicates the excellent powder retention. Made with carefully selected, high quality synthetic bristles (PBT) that feel smooth against the skin. *PBT is an abbreviation for polyethylene terephthalate, a polyester fiber with excellent chemical and heat resistance.