One of the first creations in our Detail line of brushes, the Triangle brush not only paints corners with precision and accuracy, it works great for cutting in next to trim as well! Brush Care: Remove excess paint with brush comb while cleaning with warm water and dish soap Shake out excess water Let dry in package to retain shape of brush and protect filaments If using an oil based paint or stain, use mineral spirits to clean (remove a majority of oil based paint before introducing water to the brush)