Designed to stretch to allow your small pet to escape injury if the collar gets caught. Comfort Collars feature colorful; comfortable; lightweight cotton construction and a Furry Friend Finder Bell to help you easily locate a free roaming pet. For ferrets; guinea pigs; pet rats and other furry friends.This collar is designed to stretch so your pet has the opportunity to escape if the collar accidentally gets caught. The colorful cotton fabric is soft; lightweight and very comfortable. Plus; the Furry Friend Finder Bell allows you to easily locate your pet. It has a quick snap buckle; so it is easy on-easy off. Completely adjustable custom fit 7 1/2" to 9". For ferrets; guinea pigs; pet rats and other furry friends. Assorted colors.