Shop Print Media, No drawers, 92% Polyester / 8% Spandex, Acid Gone, Multi-Tiered Instrument Detergent, For Calibrating the Quantitative Elecsys PTH Assay for intact PTH (parathyroid hormone) on the Elecsys and cobas e Immunoassay Analyzers, 5 X 6 Teeth, 4 Inch Step Height