Specification: Inner diameter: 13mm/0.5inch; Length: 27cm/11 inch; Number of binding pages:100; Material: Metal; Color: Silver Tone; Packing List: 100 Pcs Metal Twin Loop Wire Binding Spines. Advantage: The twin loop wire binding spines are manufactured from metal, which is both strong and durable, ensuring long-term productivity for all your binding projects. Featuring a double-loop style, they offer security and stability, providing a reliable solution for your long-term binding needs. They are designed for easy paper binding, ensuring your documents are preserved for an extended period. Instruction: Spiral binding coils have a 2:1 pitch, making them suitable for any binding machine that punches 2 holes per inch. Binding spirals provide a 360-degree page-turning rotation capability for easier reading. Application: These metal twin loop wire binding spines are suitable for various office occasions and provide a great convenience for file storage, file binding, paper collection, etc. They are a great solution for organizing your files, preventing them from being scattered or causing a mess. It is a portable product for office and study. Note: These 2:1 pitch wire binding spines are not suitable for machines. These metal twin loop wire binding Combs are suitable for various office occasions and provide great convenience for file storage, file binding, paper collection, etc. They are a great solution for organizing your files, preventing them from being scattered or causing a mess. It is a portable product for office and study.

Specification：
Inner diameter: 13mm/0.5inch
Length: 27cm/11 inch
Number of binding pages:100
Material: Metal
Color: Silver Tone
Packing List: 100 Pcs Metal Twin Loop Wire Binding Combs

Advantage:
The twin loop wire binding spines are manufactured from metal, which is both strong and durable, ensuring long-term productivity for all your binding projects. Featuring a double-loop style, they offer security and stability, providing a reliable solution for your long-term binding needs. They are designed for easy paper binding, ensuring your documents are preserved for an extended period.

Instruction:
Spiral binding coils have a 2:1 pitch, making them suitable for any binding machine that punches 2 holes per inch. Binding spirals provide a 360-degree page-turning rotation capability for easier reading.

Note:
These 2:1 pitch wire binding spines are not suitable for machines.