8 pairs of thick, 35 mm (1.5 inch) Anodized Niobium headpins. This is the full rainbow pack, you get one pair each in the following colours - Navy, Turquoise, Ice Blue, Purple, Pink, Green, Bronze & Yellow.
Niobium is Hypo-allergenic, making it comfortable for those with metal-sensitivities to wear. It also looks very cool! This metal is not dyed - the colour is achieved by light refracting off the microscopic oxide layer created by the anodisation process. It is hard-wearing and does not tarnish or flake off. However it is possible to scratch it with hard metal tools such as pliers when working. A good way to avoid this is to wrap a little masking tape around the jaws of your pliers first.