Using this kaleidoscope is super easy. Just hold it up to one of your eyes. Then gently turn the tube and watch as amazing shapes and colors appear. It's suitable for kids aged 3 and above, but make sure to supervise younger children to prevent any accidental swallowing or damage. When not in use, keep it in a dry place away from direct sunlight to maintain its colorful patterns. If it gets dirty, you can use a soft, dry cloth to gently wipe it clean. Each kaleidoscope is sold separately, so don't forget to leave a note at checkout to let us know which design you want.