LuxLock World's remarkably secure USA Patented Replacement Earring Back in 14k Yellow (Patent # US8365369)

Material: Stainless Steel, White GoldMetal type: Yellow-goldLuxLock TM World's most secure USA Patented Replacement Earring Back Pair in 14K White Gold (Patent # US8365369).This will NOT WORK with guardian post shown in the image with post Latter B.It can be used in Friction Back stud and Screw Back stud work with most of the standard earringIt's surgical stainless steel mechanism guarantees strengthProudly Made in USA/Includes one sets of earring backs excellent for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.