This part will allow an older spool of Prusament to become a smart spool.  Important information such as remaining material can now be tracked.  The tags are available from Prusa and are reasonably priced.  I've also included a step file if you want to modify it for your specific brand of material.  There is also a file for a part to assist with applying the labels.  Setting up and using the tag is available in the Prusa app and is fairly straight forward.

To order blank tags from Prusa click here.