14K White Gold Seamless Gem Crystal Line Small Nose Thin Hoop 20 gauge 20Material: 14K whitegold ( it is stamped) Gauge: 20 Diameter: 8mm Style: seamless hoop (just give it a little twist, insert into piercing and then untwist it) HOW TO MEASURE WHAT SIZE NOSE HOOP YOU NEED: Take a ruler and use the mm part. Place the tip of the ruler at your piercing holding the ruler straight down your nose. Take a look at the measurement where the ruler meets the bottom part of the rim of your nostril count the mm and there you have it!