Instructions for use: Place paper between the panels (white, translucent, imprinted, the more paper you use, the more interesting will be the final product). Paper must have holes on the side. Through the holes, tie a ribbon, a natural string etc. The ribbon or string should not be too tight, otherwise it would not open well.
The size of the holes is 4 x 4 mm. Note that the pages should be about 1/2 cm smaller than the panels at the top and bottom.
You can decorate the panels using scrapbooking or decoupage technique.