Pen Body is Made of Aluminium in Fine Workmanship, the Pen Tube is Made of Copper, the Refill & Screwdriver Are Made of Iron & the Matching Gap of the Pen Head is Small; So the Whole Screwdriver Pen is Lightweight, Stable, Durable & Not Easy to Break the Multi Tool Pen is a Suitable Gift for Men in the Birthday, Anniversary, Christmas, Valentines Day & Fathers Day to Make a Surprise to Your Dad, Boyfriend or Male Friends Who Love Home Improvement by Themselves, or Look for Multi Pocket Tools to Add to Their Tool Box.