This ST-38 wheel handle combo from Futaba is an RC-scale replacement set designed for the Futaba T3PJ radio wheel, offering three colour choices to help with quick visual setup changes.
The set includes red, green and blue wheel handles that act as direct spares for the transmitter wheel, handy when you want distinct colour cues or need to replace a worn grip. The parts are supplied as plug-in replacements for the wheel assembly on compatible Futaba T3PJ transmitters, so you can swap handles without altering the transmitter electronics.
Practical role in setup and tuning: swapping wheel handles helps pilots keep track of transmitter configurations at a glance during practice or events, and can restore a familiar grip profile after long use of the original part. Verify fit on your T3PJ model before final installation.
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