Extensions. From ladders to cords to even hair – they’re just what we need to get the job done. Provide your gold filled jewelry chain customers with a choice – go ahead and make a 16 inch necklace but add the 2 inch extension on the end as an added benefit and let them choose the perfect fit or length that works best for them to go with the neckline they are wearing. That way they can wear a favorite necklace again and again.