About This

• 【75 Sheet Capacity】These spiral binding coils measure 12mm (1/2") in diameter, can hold up to 75 sheets of #20 paper. They have been proven through testing reports and are capable of withstanding frequent use.
• 【4:1 Pitch & 48 Loops】Spiral binding coils have a 4:1 pitch, making them compatible with any binding machine that punches 4 holes per inch. (Attention: These 4:1 pitch binding coils are not compatible with the Cinch machine.)
• 【360-Degree Rotation】Metal spiral binding coils provide a 360-degree page-turning rotation capability for easier reading, allowing bound projects to lay flat.
• 【For Letter Size】These 48-loop binding coils are suitable for letter-sized paper (8.5 x 11 Inches). The length can also be cut with Binditek coil crimpers pliers according to personal requirements.
• 【30 Per Box】A box of 30 spiral binding coils made from long-lasting metal material, it offers elasticity for long-lasting use, ensuring professional and secure binding for all of your binding projects. Ideal for engineering files, business projects, office documents, and university presentations, they serve as amazing gifts suitable for teachers, students, and coworkers.