This 2" wide genuine leather collar is designed to help protect large dogs from other aggressive dogs and it is not messing around. It has 3 rows of steel spikes that are unforgiving and it should be used with extreme caution because it could easily cause injury to other animals or children or damage property. This gorgeous collar is very durable but it is not waterproof.  This collar is available in Red, White, or Black and in 3 different sizes: Size Neck Circumference Medium 17" - 20.25" Large 19" - 22.25" Extra Large 21.5" - 24.75"  *Canada, Mexico & International Shipping:  If your package weighs over 2 lbs, there will be an extra charge for shipping ex: 2 or more collars. *USA Shipping: If your package weighs over 3 lbs, there will be an extra charge for shipping ex: 2 or more collars.