Amazon Basics Heavy-Duty D-Ring Binder - 3 Inch, Black, 2-Pack

Key features

• Heavy-duty binder (3-inch, black, 2-pack) for extended use; holds 8.5-by-11-inch documents; 670-sheet capacity
• Binder thickness measured by ring size, not the spine
• 3 D-shaped rings; rings hold up to 50% more than same-size round rings and up to 20% more than slant rings
• Full-length clear pockets on front cover, back cover, and spine for easy customizing; 2 half-length interior pockets for storing loose sheets
• EZ one-touch opening mechanism; ideal for organizing projects, presentations, and more
• Measures 11.8 by 11.8 by 3.6 inches (LxWxH); backed by an Amazon Basics 1-year limited warranty