Shop Print Media, 92% Polyester / 8% Spandex, Dry Pro™, Submucosal Lifting Agent, 21-1/2 inch Seat Height, 1/2 Inch X 5 Yard, 20 mEq / 1,000 mL, For Calibrating the Quantitative Elecsys CYFRA 21‑1 Assay on the Elecsys and cobas e Immunoassay Analyzers