The Lock-it Setting Powder Brush has been specially-designed for the Lock-it Setting Powder by Kat Von D. It has a perfectly rounded shape and long bristles for optimal coverage.For what kind of makeup? It is very dense and it ideally spreads free powder over the entire face in a single brush. Its synthetic bristles have the ideal proportions to apply the finest free powders, such as the Lock-it Setting Powder.How is it used? - To adjust coverage from light to medium, you can use the Lock-it Setting Powder Brush to apply the compact Lock-it Powder Foundation. - Use the slender handle of the brush to guide your eye liner line. Place it along the external corner of your eye to get the perfect angle before drawing your line with the Tattoo Liner.