These Oxford Lightweight Sheet Protectors are 2 mils/.05 mm thick for sheer, feather-light protection that's wear & tear resistant. Non-stick and archival safe polypropylene sheet protectors won't transfer ink and colors from your pages. A matte finish eases glare for comfortable reading and improved clarity. Built with top loading sleeves to make pages easy to insert. Long lasting poly document protection helps you store and organize recipes, academic papers, financial reports, vital records and other indispensable papers. A stock-up essential for classroom, homeschool, workplace or home office binders. Reinforced 3 hole punch for durability. Letter size to fit 8 1/2 x 11 paper. Matte finish. 200 Per box.