Single-Touch Locking D-ring Binder features a cover made of tough vinyl material. Durable material wears well, no cracking and tearing. Exclusive Locking No-Gap D-Rings are designed for simple, convenient assembly of your materials, opening and closing quickly with a simple touch. Locking mechanism assures the rings will stay aligned to prevent papers from falling out, even when fully loaded. Metal rings are back-mounted so pages lie flat. Both inside covers are equipped with Pocket Guards. Binder also includes exposed rivets.