All acrylic easy access pockets are designed as top entry so changing posters quicly could not be easier.An imortant thing to remember is that if cable centre measurements match on acrylic pockets then they can be used together on the same pair of cables. For example A2 potrait pockets can be used with A3 landscape and A2 landscape can be used with A1 portrait as they have identical cable centre measurements. This will give you greater flexibility when planning your window or wall display. You can even purchase A4, A5, and 1/3rd A4 dispensers to match.
Less common sizes of pocket are available on request such as 500mm (w) x 700mm (h) and 20in (w) x 30in (h). Non standard sizes are not normally held in stock but can usually be manufactured in around 10 working days from receipt of order.