Institution Privacy Mortise Door Lock and Lever Trim Set with Profile Cylinder for Commercial Doors in Satin Stainless Steel Finish Single European profile cylinder with emergency access and interior thumb turn Steel inner mounting plates, mortise housing, and internals Stainless steel trim plates, levers, bolt, latch, and strike Built-in spring assist on each lever prevents lever sag and insures lever return Field reversible handing without opening lock case