Marks-A-Lot Permanent Pens orange, large tip (pack of 24)

Writes on almost any surface including cardboard, metal and plastic. Works well both indoors or out. Durable chisel tip writes in a variety of line widths. Rich, dark low-odor ink is quick drying, non-toxic, water and rub resistant. ACMI certified (conforms to ASTM D 4236).