3D printed Whistles, Free Shipping.

[Rcfiddy1]

You get 2 sets of whistles. That’s 4 whistles to give your edf that turbine whine. Can also be used on a prop planes. These are my new design which is a little smaller with the same if not louder sound.
PayPal rcfiddy1@verizon.net

[Rcfiddy1]

[Rcfiddy1]