Review on Sierra 18 73918 Propeller Thrust Washer by Jeff Langford

When I ordered this part I thought it would be brass as pictured. I have an OX66 250 and the OEM part is brass. Considering it was a good price I decided to give it a try as a replacement as the picture looks identical to the OEM part. Looking through the product description again, I can't find anything about what it's made of. I hope I get an answer how we can correct this misunderstanding.