These are my second set of tags. Unfortunately the first ones became detached from the ring attaching it to my dogs collars when the lead was accidentally attached to the ring that came with the ID TAGS rather than the ring sewn into the collars. However Red Dingo have redesigned them and now they are oval. This makes it far less likely for the ID tag to become detached from the collar. Excellent quality, I wouldn't buy any other type. Delighted with speedy service from Petiquette collars .!