The product is a control module board for Napoleon fireplaces, specifically the W190-0184-SER model. It is made of black plastic and has dimensions of 2 inches in height, 3.5 inches in depth, and 6.25 inches in width. This main PCB board is designed for use with Napoleon fireplaces and is manufactured in Mexico. Additionally, the product comes with a California Prop 65 warning regarding potential chemical exposure.