I picked up this adjustable cuff at an art festival and fell in love with it because it looked a bit like the cow jumping over the moon from the rhyme :) As far as materials, I know it is made of brass and copper, however I do not fully remember what the silver metal is, but I am fairly certain it is pewter. Make this conversation piece yours today! **For reference, my wrist is 6-6.5 inches around** This was the final price drop