Aero Works Servo Connector Clips
Produced for aeroplanes but potentially useful for cars too, Aero Works have designed an easy and effective way to secure your servo wire connectors. The simple on and off design allows you to easily install and remove the safety clips and this new design eliminates any binding or crimping of the servo wire providing a secure and fast way to insure your connectors will not come loose. A simple and inexpensive insurance to protect your investment from disastrous results caused by a servo connector disconnecting.
Source: Aero Works [aero-works.net]