Threadless Flat Back Posts made of ASTM F136 implant-grade titanium to pair with any matching ends. Threadless with a smooth and polished flat end that sits flush against the skin for the ultimate comfortable and clean fit. Sold individually. Post only, ends not included. Each piece is lovingly crafted by hand, under ethical working conditions. Please allow for minor imperfections that are true to handcrafted jewelry. No two pieces are the same — every individual product is uniquely yours.