X-Ray lead marker 1/2 inch r and l. Our x-ray markers produce crisp sharp images. All of lead x-ray markers are available as x-ray markers with initials or x-ray marker sets with no initials. The R&L lead letter in each marker is 1/2". The overall size of the marker is 7/8" x 1 5/8". Markers can be personalized with 2-3 initials/numbers.;