Enhance your document binding with our high-quality Plastic Spiral Binding Coils, designed to securely hold up to 115 sheets of A4 70g paper with a 14.3mm diameter. These durable coils feature a precise 4:1 pitch and 48 rings, making them compatible with any binding machine that punches 4 holes per inch, ensuring smooth and reliable binding for your projects. Key Features: · **Generous 115 Sheet Capacity:** Each coil accommodates up to 115 sheets (A4 size, 70g), providing ample capacity for thick documents, reports, and presentations. · **4:1 Pitch with 48 Rings:** Designed with a 4:1 pitch and 48 teeth to fit standard binding machines, delivering secure, professional results every time. · **Bulk Pack of 100 Coils:** Comes with 100 spiral binding coils, ensuring long-lasting supply for multiple binding tasks and uninterrupted productivity. · **360-Degree Page Rotation:** Iron spiral coils allow pages to rotate fully, enabling easy reading and the ability to lay documents flat for convenience and durability. · **Ideal for Letter Size Paper:** Perfectly sized for letter size paper (8.5in x 11in), with a length that can be trimmed with scissors to suit custom binding needs. Ideal for engineering documents, business projects, office paperwork, and university presentations. Specifications: · Binding Diameter: 14.3mm (9/16 inch) · Binding Capacity: Up to 115 Sheets (A4, 70g) · Teeth Quantity: 48 Rings · Pitch Ratio: 4:1 Package Includes: · 100 x Plastic Spiral Binding Coils These Plastic Spiral Binding Coils provide a reliable and efficient solution for your document binding needs, offering ease of use, durability, and flexibility. Perfect for professional or personal use, they ensure your papers remain securely fastened while allowing effortless page turning and flat opening.