선재업고 튀어 | LOVELY RUNNER [ COUPLE KEY RING ] POP-UP OFFICIAL MD

At first I was only going to buy Sunjae's (the blue one), but then I convinced myself to get both lol. They are super cute and I love the keychain its durable, not gonna lie the bell is pretty loud so I would suggest to choose wisely on where you want to place, I put one in my camera bag and the other in my backpack.