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.