The 187S Duo Fibre Face Brush with a shorter handle. A full circular brush used for the lightweight application and blending of face powders or pigments that works especially well with Mineralize products. Use to create soft layers or add textures. MAC professional brushes are hand-sculpted and assembled using the finest quality materials. Our 100% synthetic brushes incorporate the latest innovations in fibre technology for superior performance and improved longevity.. Perhaps just a popular brush but totally worth it.