Four, heavy-duty, gloss-coated cards on a key ring for field usage when running truckside diagnostics during lambing and kidding season. 
One card has normal values for BHB, BG, and USG for ewes, abnormal ranges for BHB for ewes, and TP for lambs.
One card has normal values for BHB, BG, and USG for does, abnormal ranges for BHB for ewes, and TP for kids.
One card has normal values for BHB, BG, and USG for camelid dams, and abnormal ranges for BHB for camelid dams. One card has normal values for BHB, BG, USG, and TP for cria.
The final card is a bonus card.