Baumgartens SICURIX(R) Standard Vertical Badge Holders - 12 Pack Clear (67820) - Perfect for ID Cards, Security Badges & Workplace Identification

I use these to hold my work and transit rfid badges. Both in the same holder on a badge reel, and both scan through the holder right away (I don't have to take them out or face one the right way or anything). That's all I was looking for, so these are a winner in my book. On top of that, very sturdy construction, they aren't super thin and flimsy or anything. Don't know how much more you can ask for in a badge holder, so that's why I'm giving 5 stars :)