These check holders need to be a little bigger. It is hard to get the checks, and registers inside. I put Carousels picture of thier books, then mine to show that they are not selling what they advertise. I had to do some cutting to get the checks to fit properly. Also the thin plastic separator is not good enough for duplicate check writing. The credit card holder makes writing in a register impossible because you will not be writing on a smooth surface. If you try to contact Carousel, they conveniently block the "helpful links" with a pop up box to accept cookies. There is more, but you get the basic idea. Customer service was O.K. but not great. The reps do not work for Carousel. You are calling a call center that works for many companies.