These are rear boot emblems/badges for the Peugeot 406 tailgate lock (also known as the surround), which work for the Estate / SW (Station Wagon), assuming you have the lion badge there at the moment with the black background. Some later models just had a chrome plastic lion, which these will not be suitable for.
They are known for looking tatty and fading with age. They are similar to what you would get (minus the plastic chrome backing) if you bought one years ago from the dealer. The old ones fall off the chrome backing and look very faded or damaged with age.
It is advisable to pick the old one off the chrome plastic backing, and then clean all glue and residue first thoroughly so the surface is smooth, then apply this over the clean fresh plastic of the badge surround (see the photos of how it’s fitted).
The chrome part in the photos (the backing) is not included – you reuse your old existing one by cleaning it up.
This item serves as a way to restore your existing damaged badge back to how it left the factory, in the form of a spare part serving as repair, given that there is no alternative, and any old part suitable (in the same or different style) isn’t available without buying the full surround
They are gloss black and chrome with a top coat of polyurethane premium domed resin, giving them a raised gel look that will freshen the badge up.
(Please check your badge looks like the photos first)