PATIKIL 20mm(3/4 Inch) Plastic Spiral Binding Coils 20pcs Binding Spirals 170 Sheet Capacity 4:1 Pitch Binding Spirals for Binding Paper Sheets Black

Specification: Inner diameter: 20mm/0.8 inch; Length: 31cm/12.2 inch; Coil spacing: 4:1; Number of binding pages: 170; Material: plastic Color: Black; Packing List: 20 Pcs Plastic Spiral Binding Coils

Advantage: The spiral binding coils are made of long-lasting, strong plastic to ensure long-term productivity for all your binding projects, allowing you to easily bind papers and preserve them for a long time.

Instruction: Spiral binding coils have a 4:1 pitch, making them Suitable for any binding machine that punches 4 holes per inch; Binding spirals provide a 360-degree page-turning rotation capability for easier reading.

Application: These plastic spiral binding coils are suitable for various office occasions and provide great convenience for file storage, file binding, paper collection, etc; It is a portable product for office and study.

Note: These 4:1 pitch binding coils are not Suitable for machines.