Permanent marker writes on almost any surface both indoors and out, including cardboard, metal and plastic. Carter's Large Marker delivers permanent ink in rich color so your notes are conveyed with authority. The low-odor, nontoxic ink dries in seconds. The 3/16" chisel tip allows you to vary the width of your strokes, from thin lines for small writing spaces to broad ones when you're commanding the attention of a room. The nontoxic formula is suitable for use by both adults and children, so you can make your mark at home, in school or at work.