Avery® Marks-A-Lot® Jumbo Chisel Tip Permanent Marker, Black, Pack of 3 -Bold, low-odor ink provides high visibility from a distance on most surfaces including cardboard, metal and plastic. -Permanent ink is quick drying, water and rub resistant.-5/8" jumbo chisel tip marks in a variety of line widths, from thin to extra wide-Great for making signs, posters and banners-Non-toxic, confirms to ASTM D4236-ACMI certified to meet Federal standards of non-toxicity