This is our basic collar. The main pad is 2" wide and the strap is 1" wide. A single 1" "D" ring is attached to the front of the collar. The collar attaches in the back with a 1" roller buckle and keeper. A second 1" "D" ring is attached near the buckle.

These pics show a collar lined with black plush felt, and, without velcro at the ends that would prevent twisting.

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".