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I bought this for both my cats little over 5 months ago, I loved them, until yesterday when my one year cat nearly hung himself when it got caught thankfully I was home and heard him gasping for air, the collar did not break away like it was suppose to, I had to use some force on my own to break it off his neck! This was very scary and horrible moment for me and I'm sure him we where both shaking afterwards....when and if you buy this know that it will not breakaway as it states...id advise people not to buy it because you may not be so lucky if it does get caught and you are not around to help your cat!