If you thought their Ti Post, Solid Titanium Pen + Stylus, and PHX pens meant the guys behind BIGiDESIGN were out of ideas for well-designed, high-quality, multiple refill pens, you’re wrong. The Ti Arto pen works with over 200 different refills and proves that Chadwick Parker and Joe Huang still have more tricks up their sleeves. The secret of the Ti Arto being able to accept such a staggering number of refills without hassle, tools, or tip wiggle comes from the patent-pending tip that clamps down on your refill of choice in the same type of way that a drill chuck clamps down on a bit. The titanium pen also features a screw on cap with clip (along with a custom spanner to fix it if it gets bent) and a knurled grip for easy writing. This is one more BIGiDESIGN pen that’s going to end up going to the grandkids down the line.