Wire-O Twin-Loop Binding Spools – 3:1 Pitch Genuine Wire-O spools offer a professional wire book binding finish. Often referred to as twin loop wire binders, Wire-O binding spools offer an attractive metal finish in many sizes for books. Rolled onto one large spool, this continuous wire binding spine is built to work with many popular Automatic Wire Binding Machines found in large print and binding shops. We stock wire binding spools of the highest quality, manufactured by James Burn. One major benefit of Wire-O binding spools over pre-cut wire is that you can cut it down to any length you need, with less waste. Wire binding spools come in a large selection of sizes and colors. Call (866) 789-4330 for Gold, Blue, Gray, Green & Red spool wire. ¼” 45 page capacity, 90,000 Loops/Spool – $214.00 5/16” 60 page capacity, 66,000 Loops/Spool – $228.00 3/8” 75 page capacity, 47,000 Loops/Spool – $197.00 7/16” 90 page capacity, 32,000 Loops/Spool – $194.00 1/2” 105 page capacity, 26,750 Loops/Spool – $169.00 9/16” 120 page capacity, 22,000 Loops/Spool – $167.00 Colors Available: Black, White, Silver & Pewter Order Here