UK Orders - We ship by 1st Class Post the same day. Delivery is 1-3 days. USA/Canada /Europe /Australia - Delivery is 3 to 7 days. Other destination delivery is 4 to 12 days. Surgical Steel 316L Gauge: 18g (1.0mm) 00g (10mm) Vacuum Plated (lifetime guaranteed) Package: 1pc each order Inner Diameter: 6mm - 19mm Threading: Sizes 18g to 12g (1.0mm to 2.0mm) is External Threading Sizes 10g to 00g (2.5mm to 10mm) is Internal Threaded Location: Nose, Ears, Nipple, Genitals, Eyebrow, Lips, Cartilage, Helix Piercing Your piercing should be fully healed before changing jewellery.