The bumps in this kit are custom made and will work best on older models of Rhodes pianos from 1972-1977. Supplied with the bumps is a roll of Steinway Piano felt to replace the key pedestal felts. This felt is not self adhesive and will require cutting to size for each pedestal. This kit is available for 73 and 88 key pianos.
Use contact cement to install the felt and the bump.
For a technical guide for installation read this article.
For a lighter and more efficient action this Miracle Mod has been described as a must have for all Rhodes pianos with a flat key pedestal; the difference is night and day.