While they are made the same way there are definitely differences in the reflectivity between the suppliers. Guess it has to do with the material they use and how well it's polished. While expensive Pinball Decals blades are the best I seen and have a perfect mirror reflection, whereas some others blades out there are not as crisp and have a dull look. I never seen Pinball Side Mirrors in person but it sounds like the might be as nice as Pinball Decals and at a cheaper price.