Triangle Illusion (Barbell not included) 6 x 1 mm Clear Stones Measuring 5.5 mm Internally Threaded for 18G/16G 14Kt Yellow Gold Non-Sterile Thread not in Gold Vendor: Body Gems Fits Body Gems barbells in 18G/16G and fits internally threaded barbells in 18G/16G from all APP approved jewellery vendors (USA)