| Letter Size | OD | IA | Comments |
| A | 100mm | 75mm | Fits most conventional profile fixtures |
| B | 86mm | 64.5mm | Industry standard size for profile fixtures |
| M | 66mm | 45mm | Fits Jr. profile fixtures |
| E | 37.5mm | 28mm | Fits some Mini profile fixtures, including Source Four Mini |
Our suppliers will manufacture gobo patterns to any size specification needed for a particular luminarie. The sizes indicated above are the most commonly used. However, we can manufacturer for any size, any fixture, and any wheel that accepts a gobo.
For additional sizes and information, please call us at (312) 332-5611.