Lavender Galaxy Glass Double Flare Plugs Material: Borosilicate Glass Select size from the menu PLEASE NOTE - the 3 photos that show just one pair of plugs are all of the exact same pair of plugs. Appearance/color will vary widely based on lighting environment, the object (or lack of an object) behind the plug, etc. The blue highlights specifically don't seem to be there really at all in our indoor overhead lights, however at many angles under sunlight they actually seem to glow blue EVERYTHING we sell is brand new, never worn.