"The BeatDown Outdoors Ultimate Quick Release is a fully adjustable, fully locking marine electronics mount. Using a patented reverse telescoping design coupled with 2 locking collars, The Ultimate Quick Release will securely raise your electronics from the deck of your boat up to 30"" high and anywhere in between. This mount allows you to lower your expensive electronics down and out of the way to safely navigate from spot to spot. In seconds, you can simply loosen the locking collars and raise your unit to your preferred height. Tighten the locking collars and get back to fishing, it is that simple. The Quick Release base allows you to remove your mount with a turn of knob, but it is built to lock your mount back into place just as easy. BeatDown Outdoors fish-finder mounts are built to last. Made from 6061 aluminum and 304 stainless steel. Compatible with Garmin, Humminbird, and Lowrance. Includes an under-deck plate. Mounting hardware not included. Adjustable, fully locking marine electronics mount Compatible with Garmin, Humminbird, and Lowrance Reverse telescoping design with 2 locking collars Raises up to 30"" high and anywhere in between Quick Release base locks/unlocks easily 6061 aluminum and 304 stainless steel"