Material: The material of this Helix cartilage is made out of 100% 925 sterling silver! Therefore, this helix hoop is hypoallergenic and tarnish resistant, a beautiful piece of jewelry that is guaranteed to stay on you for years and look shiny and beautiful! Size: The dimentions of this 925 sterling silver helix are: 7-8 inner diameter and a 18 gauge. the helix hoop weighs around 3 grams. Easy To Use: Twist the clip-on silver nose ring sideways to open, place on desired area, and twist back to close! No hinges, no clasps or backings, and stays tight after long-time use. Uses: Our dainty helix cartilages can be also used as a perfect gift for your male and female friends or your family. we ship all items in a beautiful jewelry gift box! Reliable Seller: At Biliboom, we’ve been specializing in body jewelry for years, dedicated to crafting the most comfortable and timeless pieces by hand to suit every individual’s needs. Shop with confidence.