M·A·C's 170S Rounded Slant Brush has a round, slightly domed shape and densely packed, super soft bristles making it ideal for applying, buffing and blending cream and liquid foundations for a smooth, streak-free finish. M·A·C professional brushes are hand-sculpted and assembled using the finest quality materials. 100% synthetic brushes incorporate the latest innovations in fibre technology for superior performance and improved longevity. M·A·C Artist Tip: Spritz the 170S Brush with Fix+ before applying your liquid foundation to get the most airbrush application in minutes. This brush can also contour your face in minutes by using the rounded area to sculpt skin with a darker foundation.