*?The length unit shown in the option is inner diameter. (Not thickness, outer diameter)

• Color : 14K Gold, White Gold Plated 14K Gold , 14K Rosegold
• Inner Diameter Size : Small - 8.5mm , Medium - 14.0mm , Large -? 21.0mm
• Outer diameter: Small -?10mm , Medium - 15.0mm , Large -? 22.0mm
• Pin Thickness size : 0.65mm
• Ring thickness : 0.65mm

About Gold
The most popular alloy of gold is 14K gold, which is 58.5% pure gold and 41.5% other metals like silver and copper.