These horns are so simple to use, just hot glue them on, and you are good to go!! Love them!!

Great product, great value. I contemplated making my own out of various items. These are worth the money! I was able to spend less time on the bench, and got my plane in the air quicker. They're also re-usable if your plan suffers a bad crash, these are almost always salvagable.

Work Great.. Yet to have one break.

Make sure to push the holes through before gluing in place