In this address the envelope is made of polypropylene and thus easy to wipe off and above all very stable, are as extras forward the time zones of the world, the international telephone prefix numbers and two pockets available, , each DIN A5 page space for 7 items, where a 2-color Ruling prevents it slipping into the line, feel the letters on the registers treated to, as if they were thinly coated with plastic and The spiral binding makes a high quality impression. Overall, in my opinion, very high quality product, which is offered at a good price-performance ratio.