1 X 96-well Flat Bottom Plate, x-Plex assay format that includes premixed coupled magnetic beads, premixed detection antibodies, standard, 2-level quality controls, detection antibody diluent, standard diluent HB, sample diluent HB, assay buffer, wash buffer, streptavidin-PE, 96-well assay plate, sealing tape and instructions for detecting Human Th17 Cytokine IL-21, IL-23, all in one kit.