These trailering clamps are a low-cost technique to keep stern drive units safe while trailering or storing them. They relieve stress on the hydraulic tilt and trim system by shifting the stern drive weight from the hydraulic cylinders to the transom bracket. These clips help protect your trailer from damage caused by weight surges. The hydraulic system's O-rings, internal seals, and valves will last longer with trailering clips. UV rays, gasoline, oil, and other maritime pollutants are all resistant. Key Features: Clips for Sierra Trailering Meets or exceeds the quality of the original equipment Mallory 9-79000, OMC 174448, Volvo Penta 174448 are all interchangeable. When trailering or storing stern drive units, this product protects them. Increases the life of the hydraulic system's O-rings, internal seals, and valve. UV Rays, Gasoline, Oil, and Other Marine Chemicals Resistant It comes in a two-piece set. Specifications: SKU: 18-9098 UPC: 808282374617 Weight :0.98 LBS Drive: All Cobra Stern Drives Comes in a set.