Just added - This dainty Hermiker Diamond belly button ring is completely hand made by me. My customer love the design because you don't need to worry about the little balls of a standard barbell design. Each piece offered you three different choices to choice: Metal Type: Gold, Silver, or Rose Gold, Bar Length (Details on measuring your piercing can be found below)8mm, 10mm, or 12mm, and Bar Thickness 18g (Thin), 16g (Thicker) or 14g (Standard barbell thickness and the thickest). The bar is hand decorated with a hammer for interest and light reflection. Each Gemstone is unique! Details: Metals: 14k Gold Filled, Sterling Silver, or 14k Rose Gold Filled Bar Length: 8mm (smallest), 10mm (little bigger), 12mm (standard length, but often to long) Bar Thickness: 18g (Thin), 16g (Thicker) or 14g (Standard barbell thickness and the thickest). Gemstone: Hermiker Diamond Dangle from the bar and this design allows one to switch out gemstones *** Measure Your Piercing: It is simple and easy to measure your piercing you just need a ruler that has a centimeter side. Most of the rulers sold in the United States have an Inch and a Centimeter side. FYI - Each little line equals 1 millimeter or 1mm. Use your current barbell or a piece of string or paper and measure from the top of your piercing to the bottom of your piercing and then add 1mm for comfort. Please let me know if you have any questions.