Proof that mermaids know how to accessorize. Inspired by the word Isla—meaning island—these pearl-lined titanium hoops can be worn anywhere (even in the water). Measurements: 20 gauge. Hoop interior diameter approx. 12mm. Materials: ASTM-F136 implant-grade titanium, gold option is 18K gold PVD plated, synthetic pearls Care: Water and tarnish proof with proper care. If exposed to salt water, chlorine, or lotions/perfumes, rinse off with cool-warm water and gently dry. When not wearing, store in a dry, cool place. Do not pull, twist, or tug on your jewelry.. Be aware that with clicker style hoops such as this, the post that goes through the ear can get bumped slightly, reducing the secure click to close them. Verify how these earrings fit prior to wearing them. Adjust the ear post slightly by pushing up or down on it, as needed until you hear a click (meaning that your earrings will stay shut!)