Trish's Mistake-Proof Sheer Application Brush is designed for the fail-proof application of foundation and powder, ensuring the Even Skin airbrushed look. Handcrafted for exquisite quality and durability, the precision cut yields technically perfect results. How to use: For an airbrushed look, dip Trish's Mistake-Proof Sheer Application Brush into your liquid or cream-to-powder foundation then stipple and swirl onto the face. By Trish McEvoy.