Black and Clear BioFlex PTFE Stud Nose Retainers with Round Head - Two 18G, and Two 20g Black and Clear BioFlex PTFE Stud Nose Retainers Two 18G(1mm), and Two 20g (0.8mm) For Majority of Nose Piercing Sizes For those not Sure about the Size of your Nose Piercing Sold as a Set of 4