Large, about14mm, pet bell. You may choose either red or green. Both have a funky festive sparkly red bow accent. That attach with a jewelry grade lobster claw clasp for easy changing. Not recommended for pets allowed outdoors unsupervised as it could become tangled causing potential harm. This is a great photo prop. It is also a great pre holiday gift for new pet parents , grand pets and just spoiling your fur kid. I welcome all questions both before and after the sale. Please don’t hesitate to ask!