An original Prism Platinum solution, our Custom A5 Backboards were designed to provide extra protection to pocket pages against the protuding base of the binder rings. By popular demand, our Custom A5 Backboards are now available for separate purchase. Available as a set of two: For maximum protection, use one backboard at the front and back of your binder, Otherwise, use it across two separate binders. Universal compatibility: The half design ensures that our Custom A5 Backboards are compatible with any A5 binders on the market.