sump plug washer

[superbees]

Hi i was going to give my car a 1999 1.1 saxo a oil change i purchased a new sump plug which came with 2 washers a metal washer with a rubber insert and also a copper washer so i was asking if i need to use both washers or just one.
And if i use both does a matter what order i fit washers?

link below of sump plug i brought
http://www.findpart.org/part/cor-220100s

[jokerer]

I used a copper one iirc

[f13sta]

The correct one is. The one with the rubber in.

[superbees]

I done oil change today and the car had just the metal washer with rubber insert fitted so i just fitted the same and throw the copper washer away.