PT Electronic Labeling System. I got a lot of use out of this in my classroom but haven't used in a while ...passing it on. Work well...may have mild scratches or dings but fully functional. Comes with black on white and black on clear tape. Needs new batteries. I do also have a separate pack of refill cartridges listed as well if you want to build your own bundle. See all images for more info and details. Bin 70