Single Slot Wooden Sign Stands

What base will fit my acrylic piece?

A5 Rectangle & A5 Arch portrait acrylic 3mm = 150mm base for edge to edge

A4 Rectangle & A4 Arch portrait acrylic 3mm = 212mm base for edge to edge

A5 Rectangle landscape acrylic 3mm = 212mm base for edge to edge

*The slot is marginally bigger than 3mm to allow variations in acrylic thickness. Ideally suited to fit a 3mm thick piece of acrylic, if you want a tight fit, a small piece of folded paper can be used so it doesn't slant.