The Pelikan M205 Duo Highlighter Ink Bottle. Introducing the Innovative 205 Duo Highlighter Whatever the task - editing manuscripts, worksheets or presentations - the bold, fresh charm of the M205 DUO Highlighter will make it a pleasure. Pelikan presents a writing instrument which exemplifies the legendary elegance and ease of use of a classic Pelikan fountain pen. The zesty and energizing highlighter ink is an all-new formulation for use with this unique yellow translucent pen. The M205 Duo Highlighter is a one-of-a-kind instrument, allowing you to breeze through marking, editing, commenting and proofing tasks quickly and smoothly.