My collars are slide over the head collars and adjusted by a slider bar. It also has a welded D ring which can be left off collar if you don’t require it. Most collar metals are nickel as they are lighter than the brass.
Small House Collar- Extends up to 15″
Medium House Collar- Extends up to 17″
Large House Collar – Extends up to 19″
Smaller or larger House Collars please get in touch.