Bolt this magnetic transducer mount to the transom or side of your boat.  The advantages of this product are:
1) can save your transducer from destruction when hitting hard unforgiving objects in the water or elsewhere
2) provides an ability to move at high speeds because the super magnets are essentially touching up against each other
3) provides an ability to remove the transducer from your boat for various reason such as: A) theft prevention ($$$ saver)  B) share your transducer among multiple watercraft ($$$ saver) C) protection during transport ($$$ saver)