The reviews weren't clear on the color of the "platinum" spacers -- they should be listed as antique silver.  The color is more gray than silver, but these at least are shiny.  I dislike oxidized or antique metal because it's usually dull and goes best with darker beads.
Width is 1/8 inch and quality seems good.  Since I work in and prefer bright silver, I'm going to try the link directly to the seller to get those, which are much more useful to me.