Knob

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This switch fits my electrical awning's control. It's not straightforward to describe without images, but they're posted here to show how it attaches to the switch. The design is unique and you should be able to tell if this switch will work for your needs too. My kids were hurt by the old broken ones we found in our new house when we moved, so I printed a replacement using glow-in-the-dark plastic from Faberdashery. Now the switch is easy to find at night.