Kokuyo Campus Adapt Slim Binder - A4 - 30 Rings - Light Blue

at first it looks expensive. but when I receive the product and using the product I did not think about the it selling price. Item is excellent quality. this is A4 binder with 30 holes. very useful if you put important documents. I am using this binder for my important printouts. currently making 30 holes manually with single hole puncher. I wish Amazon sells a solution for this 30 holes punching machine. Over all satisfied with the product.

Best binder for a student as well as office work...Quality of the product is very good... totally worth it... overall a good product

The inside flaps are useful in holding loose sheets, I also use the A4 muji paper as this brand is much cheaper than kokuyo. The only thing is that the flap on the inside is not made well so after quite a few months of use, it has basically torn/ripped along the bottom edge.

しっかりして使いやすいです。 色分けして使ってます。

The binder looks and functions exactly like described here, and I was really glad to find the A4 size, but for how much you're paying for a binder (granted, a very nice binder but still just a binder) I'd expect it to come in better condition. I'm not sure if it just got bumped around on the journey over here or if it had been opened prior but mine arrived with very small marks--they came off after I cleaned the binder with baby wipes but in the age of Covid-19 I really didn't like the thought of someone opening up the packaging on the binder I'd just bought. After giving it a good wipe down though, it functions beautifully and is such a pretty blue color! It is very slim, flexible, and semi-transparent which I love. And I love the size of it, although it is kind of skinny. The thinness is what I like about it but for those of you hoping to use this for school and take a lot of notes you may want to get a bigger binder. It holds 100 of the Kokuyo Campus sheets comfortably (~60 on the rings and 40 in the little slots), but more than that and it starts getting bulky. Pros: pretty color (the lighter parts of the binder are kind of a Robin's Egg Blue, and the darker parts are kind of a deep sky blue), looks and functions as described here, flexible, seems durable, slim, and of course: easy to open and close--the best part! Cons: arrived with marks that made it look like it'd been opened before (packaging had also been taped up rather than sealed like how factories do it), and possibly too thin for some peoples' desired uses (i.e. if you're a student taking a lot of notes a day, this probably isn't the binder for you). It's about an inch wide so if that fits your needs then discard this point. Overall, I'd buy this binder again but maybe from a store (if you could find a physical store that sells it), not from Amazon.

厚すぎず薄すぎずでちょうど良い厚さ。 バインダー部も使いやすいです。

Despite item arrived damage, the plastic rings feel cheap and not durable. Plastic covers feel cheap too. I have bought same brand about 7 years ago with metal rings. Hard fabric cover. That one was great. Still like new today.