The service is that if you send two pictures of your pet, the pictures will finish the original notebook like a study book printed on the front and back covers. You can put the name of your pet in the title part, so you can give it as a gift to your friends who have cats or dogs.
The cover color can be selected from two colors, pink and blue. The size is B6, and the inner paper is 24 sheets (48 pages).
You can purchase it at Rakuten's "My Peridot" online store. The price is 2,160 yen (including consumption tax) for 5 books per set. A separate shipping fee will be required. It takes 2-3 weeks from ordering to delivery.