Samsill is a family-owned manufacturer located in the USA. We pride ourselves on creating the most durable products for office and school supplies. There is no easier or safer way to protect important documents than with Samsill Sheet Protectors. Our 100 pack of clear super heavy-duty binder inserts accommodate standard letter-size 8.5x11” sheets for versatile document storage options for your three ring binder. Each binder sleeve is designed to hold between 10-12 sheets of paper. Super Heavy Weight document protectors are thicker than heavy duty sheet protectors on the market. These are 5mil/.127mm thick compared to standard heavy weight being 3.3 mil or .084mm thick. The crystal-clear finish gives a polished look and view to your documents and allows you to see them more clearly by reducing glare and protecting them from tears, greasy fingerprints, and other wear and tear during extended use. Our top loading clear sleeves are wider than others, allowing faster and easier loading and unloading of business reports, archived orders, magazines, operating instructions, and any other materials you want to protect, saving your time while increasing productivity. Archival paper sleeves are PVC free and Acid Free so they will not harm the materials placed inside or smear ink, making them ideal for long-term use. Binder sleeves can also be used as a reusable dry erase sheet, perfect for classrooms, DIY transparency sheets, doctor offices, signage, etc. Easily cross out tasks on your work schedule, create lesson plans in the classroom, or edit spreadsheets in the plastic binder sleeves with a dry erase marker. Then, simply wipe the protectors clean for reuse. Visit the Samsill Store for more classroom must haves, teacher supplies, craft supplies, and office binder supplies.