Pads that mount between the windwing brackets and the windwing glass.The A-18200-PAD is for the 1928-29 open cars. They fit only the original wind wing brackets that have the relief in the bracket. These molded pads are just like Ford used. A-18200-B-PAD is the flat style used on 1930-31's Open Cars and they will also fit 1928-29 Open Car reproduction brackets. 1 set does both sides, right and left.