To use this Colortrak Wide Color Brush, simply dip the bristles into your paint or coloring medium and start applying it to your surface. For best results, use smooth and even strokes. When you're done, clean the brush with warm, soapy water to remove all the paint. Make sure to dry it thoroughly before storing. Avoid using excessive force while brushing as it may damage the stiff bristles. Store the brush in a dry place to keep it in good condition.