Swingline GBC Clear View Presentation Covers, Round Corners, Clear, Unpunched, 100 Pack (2000036P) Swingline GBC Clear View Presentation Covers, Round Corners, Clear, Unpunched, 100 Pack (2000036P) CLEAR VIEW COVERS  These crystal-clear covers put your work center stage. Sturdy plastic covers allow you show off your title pages and creative design skills. 6 MIL POLY MATERIAL  These strong covers are made from tear-resistant polypropylene to protect your projects. Covers are 6 mil thick, to keep your work clean. UNPUNCHED FOR EASY USE  Unpunched covers can be used with any binding spine, in any binding style that suits your needs. ROUND CORNERS  Covers with gently rounded corners give a stylish, streamlined image. 100 PER PACK  A pack of 100 covers makes an excellent addition to your stock of office supplies.