Not sure why but they are not big enough to fit more than 1 card per slot. I like grouping them and it won't let it. I need a wallet with bigger slots (wider). I will search further. I went on vacation on April 12, 2017. returned and fraudulently reported twice online on April 12. One for $155.91 and the other for $247.98. My new credit card never left this wallet but was read anyway. I then verified this with my work ID. The card was read through the wallet. Don't trust this company or this wallet. Thought Revane was looking at her better, but apparently not.