Decorate your mirrors and glass windows with colorful artwork using this chalk market set by Craft Smart. It includes basic shades so you can write, doodle and make colorful patterns. These markers also work well on ceramic surfaces and chalkboards. Details: Includes assorted colors 5 wet-erasable fine-point markers Conforms to ASTM D-4236 For use on non-porous surfaces Contents: White Black Red Blue Green