Shop Print Media, No drawers, 92% Polyester / 8% Spandex, Dry Pro™, Submucosal Lifting Agent, 0 to 360° Head with Three Scales in 1° Increments, For Measuring the Linearity of DxH500 Hematology Analyzers for White Blood Cell, Red Blood Cell, Hemoglobin and Platelet Parameter Determinations