Rainbow?! Titanium?! Today's your lucky day. The newest update to our popular Celestial Hoops is going to have you chasing rainbows and catching compliments.  These are implant grade titanium, one of THE safest metals for the human body. Titanium is very lightweight and these almost feel like you're wearing nothing at all, which makes them a dream for anyone with sensory sensitivities! Sold as a pair. No-poke, clicker-style hoops.Materials: ASTM-F136 implant-grade titanium, zirconia, gold option is 18K gold PVD plated Measurements: Interior diameter approx. 10mm. These are .1mm larger than standard 20 gauge, making them slightly thicker, but not as thick as 18 gauge (so technically, they're 19 gauge, but that isn't really a thing in jewelry land). 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!)