1. A set of 4 simple and cute thin binders, you can clearly see which part you are in because of the different colors. The binders are made of strong plastic (PP), although they are still flexible and can be cleaned with a damp cloth. Each binder is individually packaged. 2. Sleek and stable 2-ring mechanism - 2L stainless steel links are of high quality - the rings are also easy to open and close. The internal closing mechanism works perfectly. 3. The backrest is also very suitable when traveling, because the flexibility of the backrest allows transport even in the backrest, and the material (plastic) is very stable and will not wear or break after the first transport. 4. Ideal for document classification. If you no longer need to carry a permanent binder to school, training or study...you prefer to use the flexibility, store it in your purse or bag, all schools are well organized. 5. Modern Design: The colors are attractive and a bit cooler than boring black paper notebooks. Also, this material is stronger and more durable than cardboard. Ring binders are great for meetings. high quality. Well packaged.