I'm going to Seoul in a few months and discovered I needed a T-money card. Then I saw these keychains with T-money, and I had to have them! Since I'm also a HUGE BTS fan, it made the decision that much easier ^.^ Although I wanted to get all 7 members, I only needed 4. It was really hard to choose because they all looked so cute. I ended up getting RM, Jimin, V, and Suga. I cannot wait to use them on my trip!