Dental Healing Cap Compatible Straumann. NC 3.6-height 2, NC 3.6-height 3.5 ,NC 3.6-height 5. NC 4.8-height 2 ,NC 4.8-height 3.5 ,NC 4.8-height 5. RC—Purple Color. NC—Gold Color. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.