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Plastic Spiral Binding Coil, 45 mm Diameter (1-3/4"), 4:1 Pitch, 12" Long, 350 Sheet (1-1/2") Capacity, Black, 50/Box - Bluebird Office Supplies
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4:1 Plastic Coil Binding | Binding Supplies | Finitura Binding & Finishing, Waukesha, Wisconsin 53188
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44-Hole Pre-Punched paper for Spiral Binding Coil - Case of 5,000 Sheets - 0344HOLE20 CFS Binding Supplies
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Amazon.com : Rayson 7.9mm Spiral Binding Coil 5/16inch Standard White Coil bindings Ring 4:1 Pitch 100/Box SBR-50-100-W : Office Products
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