This collar has a heavy duty look and feel to it. It is 2" wide and the ring is also 2". The collar attaches in the back with a 1" plate staple, and, we include a brass lock with two keys.

The "small" size fits necks 12" to 14 1/2".

The "medium" size fits necks 14" to 16 1/2".

The "large" size fits necks 16" to 18 1/2".

The "extra large" size fits necks 17 1/2" to 20".