The Vevor adjustable transom saver is designed to support outboard engines during trailering and help reduce pressure on the boat’s stern. Its adjustable 19.8-30.7" length fits a range of trailer and boat setups for a more secure towing experience. The heavy-duty head and galvanized construction are built for durability and corrosion resistance in outdoor conditions. It installs easily and is intended for use with roller and trailer applications. This model is suitable for outboard motors under 150 HP according to the product description.