Using these Nebulous Stars ballpoint pens is super easy. Just take the pen out of the packaging, remove the cap, and start writing or drawing. They're great for schoolwork, note - taking, or just having fun. Since these pens are for kids aged 3 and up, make sure young users don't put the pen caps or parts in their mouths. To keep your pens in good condition, always put the cap back on after use. This will prevent the ink from drying out. If you notice the pen isn't writing smoothly, try pressing the tip gently on a piece of scrap paper. That should get the ink flowing again. Enjoy using your colorful Nebulous Stars ballpoint pens!