This is a set of 3 puppy dog collar, they are super cute.I used it for my shorkie 8 week old puppy, it was a bit big for it and she was trying to chew the bell.Once I made another hole, the collar fit her perfect and she was no longer able to chew the bell.The bell is a nice touch it lets me know where the puppy is.The collars are well made and come in 3 different colors.Overall these are great.