Ball burnishing creates a shiny, highly reflective surface. This process is typically done using steel media or a media with a high bulk density that yields a cost effective, attractive finish. Ball burnishing finishes are very popular. Typically they will have a shiny, high luster appearance. In addition to polishing the surface of the processed parts, ball burnishing also creates a "peening" effect, increasing the surface density which can improve the corrosion resistance of the finished components.