Marks-A-Lot Jumbo Chisel Tip Washable Marker, Black (24158) Washable ink easily washes off hands and most fabrics Extra-broad 5/8" chisel tip writes in three different line widths Won't bleed through paper and is perfect for signs, posters and charts Nontoxic formula allows safe use by children ACMI certified. Conforms to ASTM D 4236.