Cardinal ReportPro Covers with SlideGrip Clips, 30-Sheet Capacity, Letter Size, Dark Blue, Box of 25 (2203 DKB) No hole punching is necessary with the SlideGrip feature Archival-safe polypropylene material will not transfer print on the inside or outside covers Clear front covers let you see the work Each cover holds up to 30 standard letter-sized sheets Box of 25 report covers