I purchased two gallons of antifreeze, two oil filters, and five qts of AFT. When the Toyota parts dude filled my box of goodies, he then tossed in a fiber washer and said to me, “you’ll need one of these”. After spending $ 80 on parts, I thought he was being nice and that I was receiving the washer free. When I got home I noticed that I was charged $ 1.95 for that fiber thing. Returning it would require burning as much fuel as my refund, so I kept it. I actually prefer the fiber washers to the metal cut-rings. I purchase twenty of them on the Web for $ 0.95/ea