Unique design made to match the shape of Deeper PRO/CHIRP series sonars. The Deeper Bait Boat Sonar Holder fits most bait boats and requires no tools or drilling.How It Works:1. Attach the Bait Boat Sonar Holder to your bait boat using the stickers included in the box.2. Place your Deeper sonar in it and make sure to secure it with attachment bolts and safety strap.3. Use special mode for bait boat anglers on the Fish Deeper™ app. Create depth (bathymetric) maps to get an even better view of the waters you fish.4. To increase your scanning range up to 200 m / 656 ft, use Deeper Range Extender.