Lead Letters (One Inch) (10 R +10 L) Unmounted For X-ray Markers Ready To Ship!. Condition is New. Shipped with USPS Ground Advantage. This is 20 letters in total. This price is hard to beat. Plus  these letters are already done. I am hard  to compete with on my prices and quality. Go ahead and try these letters, they are very dense as far as  x-ray opacity. These letters will do the job of showing your letter on the image or radiograph. Take advantage of this opportunity, my letters are already made. They will be shipped immediately,upon notification of purchase.