Cards in the books are handmade sew like traditional books. We never use a plastics equivalents since they can't endure the passing time.
This books could lie flat which helps you read them and write on them.
Format of Books – 340 mm high – 270 mm wide, cover is made out of Italian, ecological leather in color of dark cherry, paper - "elfenbense" 190 g/m2 of substance [in canvas structure] in color of "chamois" [ecru]. Number of pages - 180. Books are with gildings (ornaments and inscriptions on fronts and back).