2RB

2RB refers to the two-ring binder, a common type of office supply used for organizing and storing paper documents. It is characterized by two metal rings that are typically circular and can be opened and closed to insert or remove pages. The rings are usually attached to a plastic or cardboard cover, creating a portable and flexible filing system.

These binders are widely used in schools, offices, and homes for a variety of purposes, including keeping class notes, project materials, personal records, and important documents in order. The capacity of a 2RB binder varies depending on the size of the rings and the paper thickness, but they are generally designed to hold a moderate number of sheets. They are an alternative to other binding methods such as stapling or single-ring binders. The ease of adding or removing pages makes them a convenient choice for frequently updated information or for creating custom collections of documents.