Refill your disc-bound planner or 3-ring binder with this lined replacement paper. This paper is 28# (105 GSM) and the set contains 50 sheets. By combining multiple sets of various page styles, you can create your ideal planner and enhance organization and productivity. These refills are offered in two paper sizes: 5.5" x 8.5" or 8.5" x 11". The various sizes are not reflected in the photos; each size will have different proportions.