I'm selling these because I no longer need them. ・Red and blue, set of 2 ・Both books have refills added (4 cards per page x 40 pages total) ⚠️They have been used, so there are minor scratches and yellowing. I don't smoke, so it's not nicotine yellowing. ☆A new file (20 pages) is about 1500 yen on Amazon, and refills (10 sheets) are about 350 yen. (Prices are as of the time of listing and may fluctuate) A new one would be about 2200 yen per book. ⚠️Due to the thickness, shipping costs will be high, so please refrain from requesting a price reduction.