Binder Pockets, 11 Ring Clear Binder Pockets Fit in 2 / 3 / 4 Ring, Side Loading, Plastic Envelopes with Closure, Letter Size 10 Packs
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Maximum paper size : 8.5 x 11 inches.
Binder pockets : 11 Holes punched, suitable for standard 2/3/4-ring binder. Polypropylene envelopes do not damage your documents. Fully reusable and can hold about 40 pieces of A4 paper. Hooks and loops are designed to prevent paper from folding or creasing easily.