Characteristic: 1. 170-Sheet Capacity: The spiral binding coil ma a diameter of 19mm and can hold up to 170 sheets of 70gsm A4 paper, making it easy to add and reduce paper. 2. 4:1 Pitch and 48 Loops: The spiral binding coil ma a 4:1 pitch and is compatible with any binding machine with 4 holes per inch. 3. Total 100 pieces: A total of 100 pieces of spiral binding coils ensure long-term productivity of all binding elements, allowing you to easily bind paper and store it for a long time. 4. 360 degree rotation: The spiral coil of the luminaire allows the page to rotate 360 degrees, which makes it easier to read, and the luminaires can be laid flat. 5. Very suitable for engineering files, commercial projects, office documents and university presentations. . 100 pcs. Spiral Coil, 170 Sheet Capacity Silver Specification: Item Type: Spiral Binding Coil Binding diameter: approx. 19 mm / 0,75 inch Binding capacity: 170 sheets A4, 70g. Teeth: 48 teeth Skala : 4:1 . 100 pcs. Spiral Coil, 170 Sheet Capacity Silver List of packages: 100 x spiral binding coil . 100 pcs. Spiral Coil, 170 Sheet Capacity Silver