I adopt twist ring metal fittings of the simple opening and shutting just to turn it with one hand lightly.
●Ring file
●Round shape ring
●Inside pocket nothing
●A standard: A5-S
●The number of the appropriate accommodation: 200 pieces
●Back length: 36mm
●A color: Blue
●Materials: Cover = polypropylene
●Cover thickness: 1.0mm
●External form dimensions: 220* vertical 176mm in width
●The number of the holes: 2 holes
●A hole interval: 80mm
●The ring inside diameter: 25mm
●With two pieces of rotary cards