C-Line 00032 Traditional Polypropylene Sheet Protector, Standard Weight, 11 x 8 1/2, 50/BX Sold as 50/BX. Clear poly sheet protectors will not crack or tear, keeping your documents looking their best in three-ring binders. Archival-quality protection means no photocopy transfer. Folded sheet protector is open on three sides and three-hole punched for use in standard binders. Protector includes black mounting paper to provide a professional look.