These are my favorite pens. I'm a crafter and love these for making handmade cards and adding details to art. Shake 'em up a lot and then they'll work great for a while. Shake again and you're good to go. They are messy, so be careful not to get your fingers in the fresh wet ink and smudge your project. They're not as great for fine detailed writing as the ink runs a bit but they're so beautiful for larger printing and cursive.