The RE:metacil is a metal pencil made with 40% of recycled waste. The point, which can write for 16km, is made of a special alloy containing graphite and metal which results in very little wear on the lead allowing you to continue writing for long periods of time without the need to sharpen!
Your work won't be easily smeared by water or waterbased markers but is erasable. Equivalent to a 2H pencil.