REVERSIBLE BLOCK EAR THREADER- BlackConcrete, gold-filled wire1.75 inches (4.45 cm) It is the modern aesthetic combines with our signature lightweight concrete. The earrings are made with real Gold-filled wire and our very own black concrete recipe, creating a beautiful contrast in texture and color. - Made with real gold-filled wire.- Concrete continues to cure and age as time passed. Its texture and color will change as it ages through wear just like leather does.- For the newest and longest lasting look, it is advised to be gentle while wearing. Avoid scratching or scrubbing the surface as it may remove the waterproof sealer. If necessary, clean the concrete with soft cloth and warm water.- Your jewelry will be wrapped in cotton bag. Perfect to use as a gift bag on its own.