Premium MaterialEco-friendly and durable PVC plastic, transparent color of the binder cover that wont overlap your inner page Extra Large Ring BinderBinder ring made of sturdy stainless steel, 3cm ring diameter can hold 190 sheets refill papers, great for people who need a lot of writing Snap Button Strong metal button offers a safe closure, preventing the papers from falling off Wide Applications Perfect for diary, travel journal, planner, business notebook, creative writing, making sketches and study notes/drawings/work records/mood diary Measurement This A5 clear binder shell is sized at 6 9 x 9 2, ring diameter is 30mm/1 18, it is personal size Please make sure the size is what you want before ordering and if you have any questions or concerns youre always welcomed to contact us