Each product you select will contain 1 piece of clear cover (No planners or notebooks will be included) These are made to fit our planners and notebooks.  Please reference below when choosing clear cover size.  Full Year, Five Year Diary, Daily Planner, 520 Page notebooks : Choose 520 Page option. Half Year, Compact full year planner, 272 Page / 260 Page notebooks: Choose 272 Page option.  ***Due to the nature of the plastic material, they can expand and shrink based on temperature and can also vary very slightly from cover to cover. As these were made to be a glove fit to our planners and notebooks, some might be a bit tight. However this issue can be resolved by using a blow dryer on the clear cover to relax it a bit and this would make the cover fit like a glove.  Please review the sizes in the drop down menu and select the correct size and thickness based on the notebooks and planners you have purchased from us.