Organize and store all your documents and help save the environment at the same time with a trusted three-ring binder made from recycled materials. The 1" round metal rings secure up to 175 sheets. Eco-friendly Resource Recycled Kraft Binder can be recycled because it contains no PVC and is instead made of durable and natural materials. Fully recyclable, this standard three-ring binder is made from inner chipboard and the brown, Kraft paper outer cover. Even the binder packaging is recycled and printed with natural, soy-based ink.