Black Single-Ply Truss Rod Cover fits Gibson models. Not a genuine Gibson product but an aftermarket cover, the type as seen on certain lower end and intermediate Gibson models such as Les Paul Jr. Melody Makers, LG-O, ES-125, etc. 

Bell style reproduction of the originals with proper Gibson hole spacing (52mm).
Non-beveled, 1-ply black plastic construction as shown.

NOTE: These covers ship with a protective film on the top side to preserve it's appearance.
The underneath side of course don't have this protective film and may show light signs of scuffs or
scratches from being stored and transported with others.