DeRoyal Cerv-O-Collar- Features: Firm density foam construction Breathable synthetic stockinette liner Additional cover included for better patient hygiene Designed to hyperextend chin Quantity: 1 Size: Small, Medium, Medium Short, Medium X-Long, or Large Color: White Material: Foam Manufacturer: DeRoyal Indications: Cervical facet syndrome; Cervical sprains and strains; Discogenic pain; Degenerative disc disease with and without radiculopathy Options: Small (1007-02) UPC: 749756000581 Medium (1007-03) UPC: 749756000598 Medium Short (1007-04) UPC: 749756000604 Medium X-Long (1007-06) UPC: 749756000628 Large (1007-05) UPC: 749756000611 Sizing Guide: Dimensions Small: 3” x 15.5” Medium: 3.5” x 21.5” Medium Short: 3.5” x 19” Medium X-Long: 3.5” x 23.5” Large: 4.5” x 21.5”