Can someone explain?

Judging from the sound it makes as she opens it (bari, a kind of gritty noise), I think she has a wallet held closed by Velcro, and IIRC, there's a running gag in Japanese dating society about how lame that kind of wallet is, as such wallets are low-class compared to, say, leather ones. (I know there was a song in Japan about it years ago.) I'm not 100% sure this is the case here, though.