Usually used for a presentation or collector knife in a case of cordura or other padded material to protect it.
No knife should come without a container but highly finished mirror bright blades will lose their sheen if stored in or used with a traditional sheath, losing collector value.
Thus an appropriate display case was my choice.
This is correct, you can not give a knife without any "container", but in the knives that have a polished end, truly "a mirror" should not be used a sheath, because the holstering and re-holstering make lost the polished and a important part of the value of the knife.
That is why my choice was to make a worthy case.