Carter's permanent markers make it easy to leave your mark. Durable chisel tip does not fray over time and makes it easy to create lines in various widths and sizes. These large markers also hold more than 30 percent more ink than regular desk-style markers. This remarkable red ink sets in quickly when written to reduce the risk of smudging and smearing. Versatile, red ink resists wear, fading and water exposure. Markers work on almost all surfaces including paper, cardboard, metal, PVC pipes, concrete walls, plastic and ceramic. Nontoxic, low-odor markers are great for marking sports equipment, creating yard sale signs and marking boxes in warehouses. Ink is ACMI certified as nontoxic and conforms to ASTM D4236.