Cardinal 3 Ring Binders, Binders for School and Office, Durable 2 Inch Binder with Round Rings, Holds 475-Sheets, ClearVue Covers, Non-Stick, PVC-Free, Assorted Colors, 4 Pack (29311)

Customers find these binders to be of good quality, with colors that help with organization and reasonable pricing. They are sturdy, don't bend, and work well for both work and school use. The ring closure mechanism receives mixed feedback - while some say they open and close smoothly, others report that they don't stay closed. Durability is also mixed, with some customers saying they last all year while others report broken binders.