50 Pack Double Loop Wire Binding Spines, 3/4 inch Binding Wires, 2:1 Pitch 21-Loop for Letter Size, Holds up to 180 Sheets to Bind Reports and Projects

Durable metal Spiral-O wire binding combs designed for professional and everyday use. Perfect for binding reports, manuals, notebooks, and creative projects at home, school, or the office. Featuring an easy-to-use, secure design, these spines keep your documents neat, organized, and long-lasting. Ideal for students, professionals, and families, they make binding simple and efficient—ensuring your papers stay tidy and ready whenever you need them.

• ✅ Holds up to 180 Sheets：3/4-inch diameter wire binding comb securely binds up to 180 sheets of A4 70g paper, ideal for reports, catalogs, and manuals.

  ✅ 50-Pack Value Set：Includes 50 premium black double-loop wire spines, neatly packed for convenient storage and daily office or school use.

• ✅ 2:1 Pitch Compatible：Specially designed to fit standard 2:1 wire binding machines for smooth, reliable operation and professional results.

  ✅ A4 Length Precision：Precisely 297mm long to perfectly fit A4 paper size, ensuring clean alignment and a polished, professional appearance.

• ✅ Durable Metal Construction：Made from strong metal with a double-loop design that resists bending or distortion, providing long-lasting performance and a neat, organized finish.

  
  

• Product Specifications 📝
  Model: 2:1 (2 loops per inch)
  Size: 3/4"
  Binding Capacity: 15.0mm – 180 Sheets
  Material & Color: Metal / Black
  Quantity Per Box: 50 Pcs

  
  

• 📦 What’s in the Box
  ✔ 50 × Black 3/4-Inch Double Loop Wire Binding Combs
  ✔ Neatly Packed Box for Convenient Storage