BodyJ4You 5 Pieces Cone Nose Screw Retainers 18 Gauge Clear Flexible Nose Retainers Lot 18G (1.0mm) - 5 Pieces 5 Pieces Cone Nose Screw Retainers Flexible Bioplast Specifications: 18 Gauge (1.0mm), 5/16" (8mm) Use these clear bioplast retainers anytime you need to be inconspicuous.