Black Steel Single Flare Tunnels with Black Acrylic Tapers Stretching Kit (1/2" - 12mm) Go to amazon.com Related posts Top 10 best 7/16 tapers FeatureMade of 316L Surgical Steel and AcrylicSold as a pair.1/2" - 12mm DescriptionMade of 316L Surgical Steel and Acrylic. Sold as a pair.