This vintage 1980's Anne Klein necklace is a line of satin-finish, gold-plated knots which encircle the neckline at the length you select.
The necklace is 3/4" wide and length goes from 16 5/8" to 17 3/4". The toggle fits into any of the three end rings; the final has the AKII tag. The "AK" is cast on the underside of the last link.
This is a hefty necklace, cast, not stamped. It is in very fine condition, no wear, and has the remnants of the black elastic string from the store price tag.