Pink 2.5mm Synthetic Opal Ball Black Anodized Left Nose ScrewProduct Details Pink 2. 5mm Synthetic Opal Ball Black Anodized Left Nose Screw The look of iridescent opals is so in right now, especially in the world of body modifications. This 20 gauge nostril screw puts the beauty of a 2. 5mm pink synthetic opal ball on display at the end of its 1 4" length post made from black anodized over 316L surgical grade stainless steel. This simple yet elegant post screws into your piercing for a secure fit that's easy to