Top Clip for Acrylic Poster Holder:
The larger acrylic poster holders which are folded at the bottom can have a tendency to sag open at the top.
We make all such poster holders of size A3 or above in 3mm thick acrylic to help to prevent this, and supply an acrylic top clip with all of size A2 and above.
The clips fit over the double thickness of 3mm acrylic [perspex] and hold the tops of the two sides together.
Buy as few or as many as you need!