Desk-style permanent markers offer bold, low-odor ink and a chisel tip. Bold ink provides high visibility from a distance on most surfaces including cardboard, metal and plastic. Permanent ink is quick-drying, water-resistant and rub-resistant. 3/16" durable chisel tip marks in a variety of line widths. Large size has a generous ink supply for extra long life. Nontoxic markers are ACMI certified to meet federal standards of nontoxicity.