I bought this necklace because it seemed nice and it is. In addition, fish are reflective at night, so we see the necklace. The plastic fish is closing the collar, pull hard to open it. If throttle, it comes off the neck of my cat and it's also what I wanted. My kitten 4 months is still a fair bit with 1,6kg to put his neck is too menu. But he was well supported. It was not until I had good chat 2kg otherwise it will be a round neck and too small medal or the discrete Grenot (its not too strong, it is perfect) dip in the bowl. In short, very good product I'm satisfied.