Upgraded Eco-friendly EPPE Binder: POPRUN 3 D-Ring Binder 1 Inch uses certified EPPE material — a 100% recyclable thermoplastic with 5x higher impact resistance than standard PP. Ultra-lightweight (30% lighter) reduces daily carry fatigue. Shock-absorbing structure survives accidental drops from desks or bags. Free of PVC, BPA, phthalates, and acids, ensuring responsible sourcing and environmental sustainability.
Portable size & Fits US Letter Size: 11.6 x 10.2 x 1.5 inches 3 D-Ring Binder is easy to carry and organize all kinds of paperwork with ease (holds up to 225 Sheets of paper). Perfect for students, teachers and business people.
Higher Capacity: D-rings will provide approximately 12-15% higher paper capacity than O-rings, enabling more paper to be stored in a limited space and improving space utilization.
Ring Reinforcement & Durability Upgrades: POPRUN Heavy Duty 3 D-Ring Binder has upgraded ring craftsmanship to withstand thousands of open/close cycles for smooth page turns and easy opening and closing. The shell material is resistant to temperatures from -40°F to 212°F, preventing cracking in backpacks and effectively extending the life of the binder throughout the school year.
Arc-shaped Spine Design: The arc-shaped spine design conforms more closely to the structure of the human hand, providing a more comfortable grip. Ideal for students sprinting between college lectures with thick study materials, professionals carrying client portfolios through airport terminals, or parents managing homeschool schedules while juggling household tasks.