The RAILBLAZA Lowrance Hook2 Adaptor is an adaptor allowing Lowrance HOOK2 4x and 5x models to become StarPort compatible, easy to tilt and remove. Simply replace the supplied Lowrance mount with the Hook 2 Adaptor to allow single-handed display tilting. Once you've removed the fish finder, all there is left behind on the deck is the low profile RAILBLAZA StarPort. Now you can easily mount your Hook 2 fish finder on a rail or inflatable tube using the correct RAILBLAZA mount. Use the Lowrance Hook 2 Adaptor with any RAILBLAZA StarPort base.