PTFE Release sheets for Prince Caslte 297 Series Slim-Line Vertical Contact Toaster. Essentialware's non-stick PTFE toaster release sheets are 21" x 16.75"″ and shipped 10 sheets to a pack. These non-stick PTFE release sheets help your buns slide smoothly down the heat platen and help keep your bun toaster cleaner. Both sides can be used, simply clean daily and rotate. These are equivalent to OEM release sheet part number: 196-12.