SPEEDBALL-Elegant Writers. Set of six permanent ink markers; available in a variety of sizes with crisp; chisel nibs that start sharp and stay sharp. Each set contains (2) black and (1) each of the following: blue; red; green and brown. Available in Fine (1.95mm); Medium (2.6mm); Broad (3.2mm) and Scroll (3.2mm) (each sold separately). All conform to ASTM D-4236 and are acid free. Made in USA.