Drawing paper can be bound as a book, which is useful when sketching outdoors and at other locations. Mini sizes can be used as memo pads.
|Material 1||B4: (Cover) Paper (cardboard)
B5: (Cover) Paper (coated cardboard)
|Material 2||(Inner paper) Paper (drawing paper), (Backing paper) Cardboard, Rings (metal wire)|
|Sizes||B4 / B5|