Great Wall Coins Set. Iao is about 9 finished products, higher than the market circulation. Texture of material:Copper zinc alloy. The previous coins don’t look as new as the current ones. The pictures are for reference only. So you may not receive the same item as in the pictures, however the item you’ll receive will be in the similar condition as in the pictures. Good Luck for Everybody. Please view our other goods. For more information, please contact to me.