High-quality materials - The binder cover is made from soft, eco-friendly PVC. It offers good flexibility and a thick, sturdy transparent cover that allows easy viewing of the inner pages while protecting inserts. Binder cover size and compatibility - Overall folded size: 27 x 32.8 x 4 cm (10.6 x 12.9 x 1.6 inches). - 4-ring binder shell designed to fit standard 4-hole pages. - Reference page size: around A4 (23.8 x 31 cm / 9.4 x 12.2 inches). High capacity and secure closure - Binder rings are stainless steel with a 20 mm (0.79 inch) diameter, easy to open and close. - Capacity: suitable for about 100–150 pages. - Snap button closure helps prevent pages from falling out. Two rubber band attachment options - Two holes are provided to link rubber bands for securing the binder. - The transparent and soft PVC cover keeps the inner pages visible and accessible. Use scenarios - Personal budgeting and cash envelopes: organize expense pages and inserts with a clear view of contents for quick reference. - Office or school organization: store and protect four-hole punched documents, notes, and handouts in one portable shell. - Travel planning and documents: keep itineraries, tickets, and receipts neatly grouped for easy access on the go.