When ordering collars please specify neck size. Collars are used in association with other forms of bondage & BDSM play.
Collars are available in leather and in metal. Make sure that the collar does not choke off a persons blood or air supply (either from being too tight or from being too big). Make sure that the collar can't tighten on its own.
Collars are available in both locking and non-locking forms. A posture collar is a collar that is extra tall in the back and holds the head in a single position.
Many collars have rings that can be used to tie or lock items to. This can include such variations as chaining a persons wrists near his or her head or for fastening a leash. | 
