The Universal French Fry Disk is for use with the Bosch Universal Slicer Shredder attachment. In addition to slicing french fries, it can be used to slice vegetables for soup or a crudite tray. It is made of high quality stainless steel and is dishwasher safe. For use with your Universal Kitchen Machine Slicer Shredder attachment. (This disk comes with Slicer Shredder if you purchase it new).