PACKAGE INCLUDES: You'll receive 10 or 20 pieces of clear report covers and 10 or 20 sliding bars, including blue, green, and white – enough to neatly collect and classify various documents. ARCH CAPACITY: These reusable and durable report covers with sliding bars can hold approximately 20 sheets of paper. The width of the sliding bars is 5mm, preventing them from easily slipping off the clear report cover. FOR LETTER SIZE & A4: The length of the sliding bar report covers is approximately 31cm/12.2 inches, and the width is 22cm/8.2 inches, slightly larger than A4 paper and US letter size (11 x 8.5 inches). The thickness of the clear plastic cover is 14c, protecting reports from bends, surface moisture, and tears. Clear Front and Back: These plastic report covers (5mil) are made with high-quality polypropylene material, clearly displaying the top page with high transparency, making it easy to find desired documents and information. WIDE APPLICATIONS: Clear report covers with sliding bars can be used as homework folders, presentation folders, file folders, and are suitable for schools, home, or work. They help showcase presentations or reports with a professional look.