Shop Print Media, No drawers, 92% Polyester / 8% Spandex, 21-1/2 inch Seat Height, Dry Pro™, 5 X 2 mL, Medium, For the Verification of the Accuracy and Precision of the Alinity i Analyzer when used for the Quantitative Determination of Free Prostate Specific Antigen (PSA) in Human Serum