Rip Proof Reinforced Filler Paper, 3-Hole, 8.5 X 11, Unruled, 100/pack Heavyweight bond for added strength. Pre-punched holes for use in standard ring binders eliminates paper punching. Ultra thin Rip-Proof™ film on binding edge prevents sheets from pulling out at ring binder holes--perfect for active records. Jam-free printing in offset presses and plain paper copiers.