Fill your binder responsibly. Though Roaring Spring® Heavyweight BioBased Filler Paper is produced with a mixture of USDA Certified BioBased post-agricultural fibers and post-consumer recycled paper, it delivers better than average performance to ensure you can write on both sides with minimal ink bleed through. Three-hole punched for standard three-ring binders, it's ideal for back-to-school and all your loose-leaf binder needs.