What do the Resin Identification Codes (RICs) inside the symbol primarily identify?

Answer

The type of plastic resin used

The numbers one through seven inside the chasing arrows are Resin Identification Codes (RICs), which are meant to identify the type of plastic resin used, not necessarily the item’s actual recyclability in a given municipality.

What do the Resin Identification Codes (RICs) inside the symbol primarily identify?
designSymbolwasterecyclecreator