About This

• 【Multi Size For Different Needs】 There are 5 sizes of black binding coils in this set, 15Pcs of 5/16"(40 sheet capacity), 15Pcs of 3/8"(75 sheet capacity), 10Pcs of 7/16"(80 sheet capacity), 10Pcs of 9/16"(115 sheet capacity), 10Pcs of 5/8"(140 sheet capacity), allow you to bind paper sheets with ease and store for a long time.
• 【3:1 Pitch & 36 Loops】These spiral binding coils have a 3:1 pitch, meaning they work with any binding machine that punches 3 holes per inch. They are ideally compatible with Binditek spiral binding machine.
• 【360-Degree Rotation】Plastic spiral binding coils provide a 360-degree page-turning rotation capability for easier reading, allowing bound projects to lay flat.
• 【For Letter Size】These 36-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.
• 【60 Binding Coils】Long-lasting and sturdy plastic spiral binding coils ensures long-term productivity for all your binding projects, allowing you to bind paper sheets with ease and store them for an extended period. Ideal for engineering files, business projects, office documents, and university presentations, they serve as amazing gifts suitable for teachers, students, and coworkers.