Medium: 12" - 19"
Large - 15" - 24"
***Make sure to add the SIZE and any other specific information (ie. width, different color of webbing,..) in the NOTES TO SELLER at CHECKOUT.
***How to measure for your new collar:
Using a soft measuring tape, or piece of string, measure around your dog's neck where the collar would sit. Make sure you can comfortably fit two fingers between the measuring tape and your dog's neck. This will ensure the collar is a perfect fit!