Durable jumbo chisel tip (5/8") marks in a variety of line widths, from thin to extra wide – great for making signs, posters & 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 & 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.