Zoe and Piper Necklaces Four Sisters or Best Friends with Heart Accents Necklace in Mixed Metals on 18 - 20" Adjustable Silver Plated Chain, #7188 Sisters... Best Friends... symbols of support, comfort and friendship forever. A very special necklace that is a great gift to show your appreciation for that special someone. This necklace features four sisters or friends crafted in alpaca silver and accented with copper and brass, a beautiful combination of color! Each sister is adorned with a heart. A charming token of a special bond to wear yourself or give as a gift. For matching earrings, see item #7008 and #7009 in our Zoe and Piper Storefront. Alpaca silver is a term for a jeweler's alloy of copper, zinc and nickel, also known as "German Silver" or "Nickel Silver. Since some people can have a reaction to nickel, alpaca silver is used only in areas of the jewelry that do not have prolonged contact with the skin. The back of this pendant is plated in alpaca silver. longed contact with the skin. The back of this pendant is plated in alpaca silver. Pendant measures 3/4 " in width and is 1 1/8" in length and hangs from an adjustable silver plated chain that is adjustable from 18-20" in length, adding versatility. See the Zoe + Piper Storefront for a great selection of spiritual offerings and jewelry styles.