NCR sets are the simplest and cheapest type of NCR. Whether you have a 2, 3, 4, or more part NCR form, all of the parts are glued together to make one complete set. These NCR sets are then boxed loose. Being loose NCR sets they are ideal for office use where you can take the next NCR set from where they are stored and fill in your form. Once complete, you can separate the individual parts to pass on.