Staxx threadless piercing end by Buddha Jewelry with genuine white topaz stones. Details: Overall size: 5 x 2.5mm Rise: 1.7mm Gemstones: (3) 1.5 x .5mm Genuine White Topaz Natural white topaz can have a slight golden hue to the stone Solid 14k Yellow Gold Threadless end jewelry features a universal threadless pin end for a threadless post (sold separately). Threadless posts are also referred to as "flat backs".