4 Tier Card Holder

** Update 8/26/2020** I thought i had updated here as well. My new flatpack system has many different sizes, Standard and Mini that allow for more combinations and less storage space. Check them out. https://www.thingiverse.com/thing:4347124

** Update 5/8/2020 ** For those that enjoyed this model I have created a new 2 tier flatpack collapsible card holder. I'm working on other designs as well to get more tiers and wider. Enjoy https://www.thingiverse.com/thing:4347124

**Update 2/23