Raylu Paper's 4-ring binders are perfect for everyday use both at school or university or at the office. Its 4 D-shaped rings will ensure that the documents you keep will remain intact and securely inside. In addition, thanks to its sheet press we will save space in our file cabinet and we will have the possibility of saving more documents. Its size makes it easy to carry everywhere, and it is also very resistant against bumps and scratches from its use day after day.