[HIGH CAPACITY] With a generous 16mm diameter, these binding spiral coils can securely hold up to 140 sheets of A4 paper (70g), making them ideal for large documents. The easy addition and removal of pages ensure flexibility and convenience for all your binding needs.
[PROFESSIONAL BINDING] Designed with a 4:1 pitch and 48 loops, these spiral binding coils are compatible with any binding machine that punches 4 holes per inch. This ensures a secure and professional finish for your documents, for business and academic use.
[LONG TERM PRODUCTIVITY] Each set includes 100 binding coils, providing ample supply for all your binding projects. This bulk quantity ensures you're always prepared for high-volume tasks, enhancing efficiency and productivity in your office or workspace.
[USER FRIENDLY DESIGN] The 360-degree page flipping rotation allows for easy reading and navigation. The bound documents lie flat when opened, providing a comfortable and seamless experience for users, whether in meetings or presentations.
[VERSATILE AND CUSTOMIZABLE] for engineering files, business projects, office documents, and university presentations, these sheet coils can be easily cut with scissors to match individual requirements. Their adaptability makes them a must-have for various professional and academic settings.

Spec:
Item Type: Binding Spiral
Material: Iron
Binding Diameter: Approx. 16mm / 5/8in
Binding Capacity: 140 Sheets (A4, 70g)
Loop: 48
Pitch: 4:1

Package List：
100 x

Binding Spiral
Note：