The Humminbird 740179-1 IDMK H89R is an in-dash mounting kit specifically designed for the Helix 8 and 9 fishfinder models. This kit allows for easy installation of the fishfinder inside a boat's dashboard, providing a seamless and secure mounting solution. Made of durable metal in a sleek black color, this mounting kit is perfect for outdoor fishing activities. With a manufacturer warranty of 1 year, you can trust in the quality and reliability of this product for your fishing adventures.