Wheel center cap retainer washers.These may also fit some hubcaps and wheel spinners.This is the washer that fits inside the rear of the wheel and holds the center cap on with a screw or bolt.Die stamped metal with cad plate.Flanged shape.The small end fits inside a 2 1/2" hole in a wheel to hold the center cap,and the flange goes up in size to 2 3/4".The hole in the center will accept up to a 1/4" size bolt or screw.Old speed equipment,not a new reproduction from China.One pair New $25+$6 s&h USA/48.For over 300 other items for sale click on View Store above.