Using these double-ended markers is easy. Just pick up a marker and start drawing with the color on one end. When you want a different color, simply turn it around. For best results, use them on paper or other smooth surfaces. Remember, these markers are non-toxic and washable, but they may stain some surfaces. So, it's a good idea to test on a small area before using them on a new surface. Also, adult supervision is advised, especially for younger kids. When you're done using the markers, make sure to put the caps back on tightly to keep them from drying out. You can store them in the provided set or in a marker case for easy organization. These markers are suitable for kids aged 3 and up, so let your little one's creativity flow!