This map case is a double sided transparent water resistant Map & Document protector, to present your maps when in use. Both sides of the case are transparent so you can expand the routes you wish to travel.
The case will fit most all maps but just folding the map to present the are you are working in.
Size 215 mm x 135 mm in size. or using a 1:25,000 Map folded to present 12 square Kms on either side. (See pics)
I currently have three on stock, each a little different to the other. But all the same size and function.