This thick and tall 4" posture collar is created of durable leather. It has a solid welded tri-ring in the front and a heavy-duty buckle in the back. While it can be used with or without a padlock, with the padlock the collar stays in your sub for as long as you wish. The padlock is sold separately.
Small fits neck sizes 12.5" - 14.5"; Medium fits neck sizes 15.5" - 19.5"; Large fits neck sizes 17.5" - 21.5".