Choose TWO Bioflex Nose Screws with hand-set Swarovski Crystal, 18g x 6mm (1/4"). Available in 3 gem sizes and 15 colors! The 1.5mm gem size creates a ting sparkle on your nose, the 2mm gem size is the standard size for most jewelled nose screws and the 2.5mm gem size gives your nose a lot of sparkle!