From the Ebay ad 281090670270, at
http://www.ebay.co.uk/itm/2810906702...270%26_rdc%3D1
it is very clear that none of the badges have any sliders, loops or any other kind of fittings. As stated by other members, above, it is difficult to tell what metal they are made from; it cd as likely be AA as anything else.
Be interested to hear from any member who buys from this ad.