Durable jumbo chisel tip (5/8") marks in a variety of line widths, from thin to extra wide - great for making signs, posters and banners. Extra-large barrel with generous, long-lasting ink supply. Won't dry out - leave cap off up to 1/2 hour! The ink is low-odor, nontoxic and safe for office, school, or home. Marker Ink Type: Permanent; Marker Tip Type: Chisel; Marker Tip Size (text): Extra-Broad; Marker Tip Size (numeric): 15.9 mm.