The product is an OEM GM heater A/C blower switch designed for 1971-1976 Buick Riviera, Electra, and LeSabre models. Manufactured by General Motors in the United States, this switch has the OE/OEM part number 7827843 and manufacturer part numbers 1223590 and 7932131. It serves as a crucial component for controlling the heating and cooling system in these specific Buick vehicle models.