This is a protective Case for the Govee H5055 Meat Thermometer. There are several different configurations that can be used. The probe tray holds 4 probes and the meter tray holds the meter. They interlock and can be held together with a rubber band if you find that they are too loose, but there seemed to be adequate clearance so that they only slide apart when you actually open it. I recommend leaving the meter with the screen facing away from the probes so that the screen doesn't get scratched. I have additional models of this in the event that you would like it expanded to hold 6 probes, but I figured that 4 should be sufficient.