NT Cutter L-500 model, comes with 2 replacement blades. A-300 is a light-duty cutter, with 1 replacement blade. - Model: L-500, A-300 - Brand: NT Cutter - Accessories: 2 and 1 replacement blades - Type: Cutter knife Both are unused, but the light-duty cutter only has one replacement blade. They have been stored at home for a long time. Please consider this before purchasing. #Lal Stationery