Made of durable, smooth plastic, each report cover has a black plastic swing lock clip that is attached at its top end with a swivel to the spine of the cover and swings inward to securely clamp the documents inside the cover together. Use these covers to bind together and protect the pages of reports and papers for your classes, manuals for the office, procedural documents for your business and more.Details:Available in multiple colors9" x 12" each20 report coversHeavy-duty plasticHolds letter-size documents