Bestem BT-RUNNER-KNOB10 RunnerKnob Precision Control Knobs for Walkera Runner 250 Drone Racer RC Quadcopter , (Pair)
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<li>Injection-molded silicone knobs</li>
<li>Improve control precision</li>
<li>Add a degree of conform and reduce hand fatigue</li>
<li>Slip on and off with ease but secure enough</li>
</ul>
</div>
</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/41I37vRn0PL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/41I37vRn0PL.jpg'></br>