: Each piece of our jewelry is handmade and as unique as you. Explore our shop for more beautiful creations! ITEM NO.SH158Blue Dimensions and Gauge: SINGLE - for ONE ear - 8mm Outer Diameter, 7mm Inner Diameter Hoop // 22Gauge = 0.6mm Thickness of the Wire // 2mm Opal Diameter NOSE & EAR USE: The hoops are best for the Nose and for Cartilage, Helix (top ear piercing), and for SMALL ears can also be used for 2nd or 3rd ear piercing. Premium Materials: Made of 925 Sterling Silver, Shiny Silver, Nickel-Free, Tarnish Resistant, Water Resistant // Three Synthetic Blue Opal Gemstone 2mm Diameter Unique Closure & HOW TO USE: The Hoops have a silver ball with a hole for best closure. To open the hoop please gently pull the wire out of the ball and gently twist the ends of the hoop sideways, put in the nose or top ear and twist back to close and push the wire back to the ball for perfect closure. Some women find it a bit hard to put on in the first time, but this kind of closure gives a more dainty and beautiful look, and makes it stay in safe and comfortable. you can comfortably sleep with it.