WireBind - Wire binding spine A4 - 3:1 pitch. Do you need permanently bound documents with a high-quality, modern finish? Then the high-tech GBC WireBind binding spine is the ideal binding solution for you. From important client proposals to business reports, GBC WireBind gives your presentation the ultimate polish. WireBind allows pages to lie flat and flip 360 degrees – practical for note-taking and photocopying. The wire binding spine with a 3:1 pitch (34 holes) is suitable for all standard wire binding machines. The best choice for a professional appearance. Durable: With WireBind metal spines, you can bind documents permanently and tamper-proof. Precise spacing ensures that the bound pages cannot shift. Double loops minimize bending and provide maximum stability. Ideal for round or square 3:1 holes. Secures confidential documents: Pages can only be removed if the binding is destroyed. Available in various sizes and colors.