X-Ray Pocket Mount #5-Progressive 20V #2 - Rinn 21-7890, 100/Pk. Made from the highest quality plastic. Holds rapidograph firmly in place. Stain-resistant and impervious to darkroom chemicals. Slim profile - fits easily into files and envelopes. Made in the U.S.A. Compare to Rinn 21 Series. Radio frequency welded seal secures radiographs in pocket. Broad viewing area exposes the entire radiograph, and enhances pathology detection. Radiographs can be duplicated in