Traditional Polypropylene Sheet Protector, Heavyweight, 11 x 8 1/2, 50/BX, Sold as 2 Box, 50 Each per Box Clear heavy polypropylene three sided loading ring binder sheet protector fits 11 x 8 1/2 inserts. Open on three sides. Fold-over on binding edge. Professional black mounting paper. Won't crack, scratch or tear.