The Three Treasures Pewter Pendant depicts the ancient Japanese symbol for “ Nagare “ ( nA – GAH – Ray ), often referred to as the “ flow ” of life, found in music, love-making and of course the martial arts. The Three Treasures pendant is made of lead-free pewter and comes suspended on a simple stainless steel chain. Pendant measures two inches tall, by one inch wide, by one eighth inch thick. Stainless steel chain measures thirty inches. Weighs just under three quarters of an ounce. While we avoid certain metals such as nickel and chrome-alloys, we have yet to hear of any adverse reactions for those who have metal sensitivities.