he high-quality circular barbells of Titan Zirconline® have the shape of a horseshoe. All threads in our jewellery collections are standardised so that you can combine the rings, balls, bars and attachments with each other! They are suitable for many piercings and absolutely timeless. A real piercing classic! 
The Circular Barbells are externally threaded, so the balls are screwed onto the external thread of the bar. 
All Basics Titan Zirconline® can be sterilised in an autoclave and are absolutely safe for allergy sufferers due to the skin-friendly nature of the material.