Enjoy the tightly-packed antimicrobial brush bristles of the Universal Flat Top Makeup Brush Head for use with sonic blend. Antimicrobial protected brush bristles protect against 99% of bacteria that can grow on brush heads between use. Ideal for precision makeup application and buildable full coverage airbrush-like results. Provides superior application and blending for a flawless finish. Compatible with liquid, powder and cream makeup. The Antimicrobial Round Top Universal Brush Head is for use with the sonic blend Sonic Makeup Brush.