Painting narrow surfaces like windows and window grids is now a pleasure when using the square brush. This brush is a favorite among many due to its perfect width and incredible bristle pack-out providing a smooth finish and fewer dips! 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)