• Striking colors with high-quality concentrated chalk ink that provides vibrant and bright tones. • Reversible 6 mm tip that allows choosing between a fine tip for details or a chisel tip for thick lines. • Incredible versatility for use on whiteboards, glass, windows, mirrors, metal, and non-porous surfaces. • Very easy to clean with a dry or wet cloth without leaving stains or residue. • Non-toxic and odorless ink, designed to be safe and durable for both children and adults. • Ideal for restaurant menus, school projects, storefront decoration, and marking containers.