Best for purpose, but quality lately bit off
I've 9 rescue cats, all go outside, and I've been buying these collars for years. They suit the purpose best with the flap to write phone number in. However, in recent past I noticed the quality has gone down a bit. The safety latch on some is so tight that even I had trouble opening it (let alone a cat pulling away from being caught on a branch or fence). On most collars the button of the flap is so loose that they constantly open up at the slightest trigger. Still best buy though.