<https://quadquestions.com/product/4s-balance-cable-holder-for-the-sparrow-line-of-quadcopters/#product>
<http://schema.org/description>
"This Balance plug holder holds the balance plug from your battery securely to your Sparrow or Sparrow knight keeping it from getting sucked into the props!"
<https://quadquestions.com/product/4s-balance-cable-holder-for-the-sparrow-line-of-quadcopters/>