Check the listing for details. 12mm(1/2") Spiral Binding Coils, 50 Pcs Set Spirals 85 Sheet, Multicolor. Condition: New. Listed at 25.10 USD. 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.SpecificationInner diameter: 12mm/0.5 inch; Length: 279mm/11 inch;Coil spacing: 9.5mm;Number of binding pages: 85;Material: plastic;Color: Multicolor;Packing List: 50 Pcs Plastic Spiral Binding CoilsAdvantageThe 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.InstructionSpiral binding coils have a 9.5mm pitch, making them suitable for any binding machine that punches 3 holes per inch.Binding spirals provide a 360-degree page-turning rotation capability for easier reading.NoteThese 9.