Pewter Pendent Feng Shui Pah Kwa According to the Chinese religion of Daoism, the Pah Kwa is a protective symbol. This pewter pendant also features the Yin Yang symbol of positive and negative forces. Approx. 3cm diameter. This item is British made pewter pendent is superior in quality to imported pewter. It is an alloy of tin with small additions of copper and is entirely free of lead and nickel, thereby eliminating the possibility of allergy. This item also comes with a black cord for hanging your pewter necklace.