Their collars are breakaway, I remember the pet shop clerk gave us a lecture about it when we said we were new cat owners and weren’t sure everything we’d need. I’ve only had my cats for a little over a year so I do appreciate the advice, I still feel like I’m learning all the time. My only other experience with a pet is my parents’ dog so I’m no expert in having pets in general, so any advice is always nice. Thanks for taking the time to offer some.