Cons : Didn't like this product at all! The coating is so thick that when I try to use it in beads it doesn't soften and roll around the bead very well. I ended up with sharp points sticking out of my beads. In addition, I didn't like the way it looked in my beads. It looked like semi-shiny pieces of metal stuck in the glass. Finally, on it's own, the coating has flaked off the copper and I have nothing but shards in the bottom of the bag.