MATERIAL: environmental alloy, gold plated SIZE: chain 19.6 + 2 extension, lock pendant: 0.98*0.59” Note: This necklace comes in one (1) alloy gold PLATED necklaces. Pls Note the Size on Last Picture. Necklace Chain Length is Adjustable with Extender Chain and Lobster Claw Clasp. It’s the Perfect Pieces to Add a Touch of Elegance to Any Outfit. As an Unique Gift for Her, Sister, Mom and Girl-Friends.