100 pcs. Spiral Binding Coils 16mm 48 Teeth 4:1 A4 Paper Binder Combs . 100 pcs. Spiral binding coils with a diameter of 16 mm 48 teeth black Characteristic: 1. 140-Sheet Capacity: This spiral binding coil ma a diameter of 16mm (5/8") and can hold up to 140 sheets of 70gsm A4 paper, making it easy to add and subtract sheets. 2. 360 degree rotation: This spiral luminaire back allows the page to rotate 360 degrees, which is easier to read, and the luminaire elements can be laid flat. 3. 4:1 Pitch: The binder spine ma a 4:1 pitch and is compatible with any binding machine that can punch 4 holes per inch. 4. Superior PCV Material: This binding ridge is made of superior PCV material, which is strong and wear-resistant, not easy to deform and ma a long service life. 5. Wide Application: This ma a wide range of applications and is ideal for engineering files, business projects, office documents and university presentations. . 100 pcs. Spiral binding coils with a diameter of 16 mm 48 teeth black Specification: Item Type: Spiral Binding Coil Material: PCV plastic Binding diameter: 16 mm (5/8 inches) Binding capacity: 140 sheets (A4, 70g) Number of teeth: 48 teeth Ratio: 4:1 . 100 pcs. Spiral binding coils with a diameter of 16 mm 48 teeth black List of packages: 100x Spiral Binding Coils . 100 pcs. Spiral binding coils with a diameter of 16 mm 48 teeth black