Internally threaded Titanium barbell in 1.6mm (14 gauge) with ball and cone. The cone end is available in 3mm, 4mm or 5mm and the thread on each end is 1.2mm, both ends are removable. The barbells are made out of high quality grade 23 Titanium (6AL-4V ELi) and they are available in a choice of lengths - 6mm through to 40mm. The bars are internally threaded so they are very gentle to insert into piercings because there is no thread on the barbell itself so it is completely smooth, the thread is on each attachment. You can choose from Highly Polished (silver coloured) Titanium or Bronze, Brown, Blue, Ice Blue, Yellow, Gold, Rose Gold, Peach, Pink, Purple, 2 Tone, Teal, Rainbow or Green.