Rings Interlocking Necklace

Two rings are interlocked on a necklace. One ring is smooth while the other has a rope texture. Charm is 10mm x 21mm in length.
16.5" chain with 2" extender, lobster claw closure.
Sterling silver, 14k yellow gold over sterling silver.
Lead and nickel free (zinc is used in place of nickel).
Comes carded.