You’re right, Olivia. It’s the “fatter” sharpies you need. They’re the fine-tipped ones, where as the ultra-fine tip markers are better for drawing, writing, tracing. I’ve made sure the links in the post go to the correct product on Amazon but it looks like some of their Sharpies are incorrectly labeled over there, as you can see here with these ones: http://amzn.to/2kuORKP. Lesson learned for me too here – check to make sure the title of the product on Amazon matches the image shown. 🙁