The Gerber Aritfact is a small knife which the blade can actually be removed and replaced if needed. The blade itself uses a standard #11 hobby blade. The knife also features a bottle opener, pry bar, cross driver, small & medium flat drivers and a wire stripper. A very handy tool that’ll fit on your key chain (albeit a little big). Added bonus, this knife may be eligible for carry-on with the TSA April 2013 prohibited items list changing. Worst case if you can’t bring it on because the blade isn’t complaint, you can throw it out and buy a new #11 blade when you land.