Internally threaded Titanium barbell in 1.6mm (14 gauge) with ball and flat star. The star end is available in 3mm, 4mm or 5mm and the thread on the balls is 1.2mm. The barbells are made out of high quality grade 23 Titanium (6AL-4V ELi) and they are available in 6mm through to 40mm lengths. Being internally threaded 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 the ball and the star, both of which are removable. 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.