These McMurray Office Chairs are Columbia swivel-tilt conference chairs with a medium back and adjustable seat height and locking back. McMurray is a leader in quality office furniture also creating custom pieces. Founded in 1981 McMurray had an early interest in sculpture and architecture creating one-of-a-kind pieces. These chairs are black leather inside and out of the highest quality. They do have a very slight wear mark on the arm rests.