| 2 ring / 4 cross over prongs finished in matt black | 
| 55mm spine | 
| Covers and mechanism are riveted to spine for strength | 
| Holds up to 400 sheets | 
| Moistiure and dirt resistant | 
| Standard width covers to take A4 size punched papers | 
| Unique locking mechanism, easy to open, easy to turn and easy to add | 
| User friendly grips make it simple to remove from even a full shelf |