This listing is for 1, KODAK Tri-X Pan Professional TXP523 4X5 Film Pack, 16 EXPOSURES. I have about 50 of these for sale. they have been in my freezer since, approximately 1995, before that the were stored in a refrigerated government warehouse. If you are not familiar with this film, it is medium format film (thiner film base, more flexible) cut to 4x5 sheets, you get 16 preloaded 4x5 sheets per cassette, the cassettes can not be reloaded. After you expose the film, pull the tab and the film slides to the back of the cassette, the next sheet is ready to go. I have shot a lot of this film and have had GREAT results. You will need a  GRAPHIC film pack adapter (DO NOT confuse with a GRAFMATIC FILM HOLDER) Very easy to find on ebay and very cheap. THE FILM PACK ADAPTER IN THE PHOTOS IS NOT INCLUDED IN THIS SALE.. If you would like more than one of these than buy 1 pack, let me know how many you want, and I will send an invoice . BUY 10 and get 1 FREE!! No additional shipping  charges will be applied after the first $3.00