Features: Designed for square hitch Motorhomes, these two stabilizer plate fasteners eliminate trailer swaying and rattling noises while enhancing towing stability and driving safety during transportation. Crafted from alloy steel with corrosion resistant treatments, it offer 3x longer service life than standard plastic alternatives, ensuring reliable performances in extreme weather conditions. Ideal for Motorhome owners, trailer enthusiasts, and frequent traveler seeking enhanced control for family camping trip, or heavy load hauling scenarios. Perfectly for multiple trailer types, it secures cargo during bumpy road, sharpened turns, or sudden braking while maintaining hitch stability for both short commutes and long distance journeys. The adjustable design allows effortlessly installation without professional tools, providing customizable tension to prevent metal on metal friction and structural wear over extended use. Specifications: Product name: Trailer arm hook stability plate fastener accessories square port drag Motorhome anti-shake anti-loosening anti-anodescent sound Component: Iron and manganese steel Size:Approx.102x75x77mm/4.02x2.95x3.03inch Package Includes: 2pcs Trailer Hitch Stabilizer Brackets note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.