Features
| Type | Permanent |
| Shape (Rectangular, Round, Square, etc) | Rectangular |
| Magnet Pole Type (Fine Pole, Fine Pole & Standard Pole, etc) | Transverse |
| Width/Diameter (Inch) | 11-13/16" |
| Width/Diameter (Decimal Inch) | 11.8100" |
| Width/Diameter (mm) | 299.97mm |
| Length (Inch) | 19-11/16" |
| Length (Decimal Inch) | 19.6900" |
| Length (mm) | 500.13mm |