Crayola - CYO588312 Define each and every detail of your next work of art with Doodle Markers. They are perfect for fine details and doodles, offering intense permanent ink that won't smudge or bleed through. Use them to practice creative lettering, detail handmade cards, decorate notebooks, bullet journals and so much more. Whether you are stocking up on school supplies or replacing your marker set at home, these permanent markers are intended for aged-up artists. They are ideal for teens and adults, but safe for ages 8 and up.