Spiral coil-bound books are perfect for different notebooks and agendas that users will write in or guides that will have to stay open for some time. A plastic spiral is threaded through the holes on one side of the pages to hold them together. These books do not get distorted after long periods of usage and can be fully open. This makes them easy to write in and pleasant to read from. The pages are not hard to tear from the spiral coil-bound notebooks, making them an excellent option for students. Make sure your design allows enough space on the margins for the coil to go through so the holes don't punch through the text.