1" Ring not 1" Spine,Durability and Large Capacity: The 3 ring binder features a tear-resistant spine and reinforced edges, designed to withstand daily wear use. The 1 inch Slant-D rings securely hold up to 250 sheets without bending or warping Lay-Flat Design for Easy Writing:The back-mounted slant rings ensure pages lie completely flat for smooth writing Clear View Cover & Spine Customization:Personalize your binder effortlessly with the transparent front, back, and spine pockets,insert custom covers, labels or artwork for instant recognition - perfect for school projects, team branding or office documents Wide Nonstick Interior Pockets:Two extra-large PVC-free interior pockets safely store loose papers, sticky notes, or cards. The nonstick material prevents ink transfer and protects sensitive documents Smooth Ring Device:Quickly add or remove pages with the easy-grip lever that opens/closes the rings securely, and lock pages in place to prevent accidental slips 1" Ring not 1" Spine,Durability and Large Capacity: The 3 ring binder features a tear-resistant spine and reinforced edges, designed to withstand daily wear use. The 1 inch Slant-D rings securely hold up to 250 sheets without bending or warping