This is an ARTPHERE BAG from Toyooka Kaban. It's an ARTPHERE bag designed by Mr. Yuri. I loved and took good care of it, so it's in beautiful condition. I used it as a handheld bag and didn't use the shoulder strap. When I was listing it, I looked for the shoulder strap but couldn't find it, so I'm offering it at a lower price. If you'd like to use it with a shoulder strap, you can purchase one of your choice. The size is approximately 25 cm in height, 34.5 cm in width, 14.5 cm in depth, and the handle drop is about 5 cm. It easily fits A4 documents, and the back zipper connects to the inside, making it easy to take things in and out. I hope to pass it on to someone who will use it.