Sterile Black Steel Micro Barbells - straight bar - also known as Black Steel Eyebrow Bars (straight) in 1.2mm gauge with 3mm balls. Ready to use, Sterile Black Steel Jewellery to help the body piercing professional. Very convenient! Ethylene Oxide (EO) Sterilisation for maximum quality and confidence. Suitable for use in eyebrow piercings and ear piercings amongst others. Also available as Steel Eyebrow Bars - Curved or in Titanium and Surgical Steel. Pre-sterilised piercing jewellery is individually sealed, dated and sterile for up to 5 years.