Heavy-Duty 3-Ring Archival Binder, 4" Spine

Made with heavy-duty hardboard covers, metal piano hinges, and a metal-reinforced spine, this rugged 3-ring binder is ideal for long-term archival storage. The D-shaped rings feature our One-Touch mechanism, making opening and closing this binder a breeze. The spine pocket with a removable spine label makes it easy to classify binder contents. Favored by libraries, law offices, research institutes, and historical societies, this durable binder is perfect for preserving and safekeeping frequently referenced documents. 

Features:

• Crafted with heavy-duty hardboard covers
• Effort-free, One-Touch ring mechanism for smooth opening and closing
• Dependable slanted D-ring ensures pages lie flat
• Ball-and-socket ring closure for snag-free page turning
• Metal piano hinges prolong the life of the binder
• Steel-reinforced spine for strength and durability
• Customizable spine label
• Ideal for long-term archival and high-capacity document storage

Specifications:

• Spine Width: 4"
• 3" Rings
• Binder Dimensions: 11.625" H x 12.375" W x 4.5" D
• Fits U.S. Letter-Size: 8.5" x 11" Paper
• Sheet Capacity: Approximately 725 sheets
• U.S. Ring Spacing: 4.25" (10.8 cm)