100PCS Spiral Binding Coils 48 Loops 4:1 Pitch A4 Paper Plastic Binding Spines 40 Sheets Capacity 8mm Diameter White

Feature: 1. Diameter and Capacity: These binding coils have a Diameter of 8mm (5 16 inch) and can accommodate up to 40 sheets of paper (A4, 70g), easy to add and reduce paper. 2. Binding Specifications: These spiral binding spines have a 4:1 pitch, 48 loops design, which is compatible with any binding machine that punches 4 holes per inch. 3. Plastic Material: These paper binding spiral coils are made of excellent plastic, with good toughness, wear resistance, aging resistance, and has a long service life. 4. 360 Degree Turning: These plastic spiral binding spines allow for 360 degree page turning rotation function, making your binding items flat and easy to read. 5. Wide Applications: This kit includes 100 spiral binding spines, perfect for letter size paper (8.5x11 inch), widely used for binding paper, documents, manuscripts, etc. Specification: Item Type: Spiral Binding Coils Binding Diameter: 8mm (5 16in) Binding Capacity: 40 Sheets (A4, 70g) Number of Loops: 48 Loops Pitch: 4:1. Package List: 100 x Spiral Binding Coils