Each blank is one of a kind with unique patina colors and textures. 
Raw brass blank to create your own metal set jewelry (necklace, earring etc.,)
Patina is on both sides of the blank.
Metal - raw brass
Size - 30 mm (1.18")
Quantity - 4 pcs (2 pairs) 
I made the photo on my workbench on my mobile phone. So, you can see the real colors of the patina!
You can add a layer of lacquer to further protect the finish. 
The colors of the patina are natural, and in all processes, no harsh chemicals are used.  
My dear friends!
https://www.etsy.com/shop/AlchimiaMetalDecor
I want to inform you about the opening of my new store on Etsy Alchimia Metal Decor. This store presents our metal products for home/office decoration - copper and brass textured sheets, patinated wall hangings, interior items, and more.