Binder Pocket With Hook & Loop Closure, For 8-1/2 x 11″ Documents, Pack of 10 Pockets. Biodegradable Clear Binder Pockets are made from acid-free, archival quality polypropylene which contains an additional additive that allows it to biodegrade when tested according to the ASTM D5511. 1 inch gusset expands for additional capacity of up to 200 sheets. For 11 x 8-1/2″ document storage. Fits standard 3-ring binders. Pack of 10 pockets.