David Yurman’s Two-Tone Long Box Chain with Extender is actually two 2.7-millimeter chains in one that can be wrapped twice! Made of sterling silver, one chain is 16 inches long and can be worn alone or connected to the 32-inch chain (which also can be worn separately) to make a 48-inch-long chain with 14K yellow gold logo charms near the lobster clasps. In very good condition, it is gently worn. Originating in Venice, box chains are sometimes called "Venetian chains,” and are known for their durability, comfort, and ability to match any ensemble!