Feature 1Stable Connection: The receiver can be connected to the trailer to better secure RVs, transport boats, and high strength to ensure a stable journey. 2Sprayed Plastic Surface: Trailer bumper hitch receiver is made of sprayed plastic treatment surface, exquisite craftsmanship and upgraded design bring you reliable use effect. 3Application: Receiver mounting size center distance is 85x45mm/3.34x1.77in, hole diameter is 13.5mm/0.53in, and suitable for trailer, camping RV. 4Anti Rust: Trailer receiver tube is made of cast steel, iron galvanized material, high hardness, rustproof, not easy to break or deform, sturdy and durable. 5Simple Installation: Easy to install without any modification, no complicated operation is required, convenient for using, saving your time and energy.Item Type:TrailerReceiverTubeMaterial: Caststeel,irongalvanizedSurface Treatment: Sprayed plasticSquare Tube Size: Approx: 50x50mm/1.96X1.96inInstallation Size: approx: center distance 85x45mm/3.34x1.77in, aperture: approx: 13.5mm/0.53in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Total Height: Approx: 155mm/6.10inBolt Aperture: Approx: 18mm/0.7in (with matching bolt)Application: Suitable for trailer, camping RVPackage List1 x TrailerReceiverTube1 xBolt1 x PinNote1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.