Feature:1. Strong Material: Our wheel replacement are made of iron bearings and rubber wheels to ensure maximum density and strength, providing reliable long term use.2. Water Repellent: The wheels are made of a special waterproof compound and are reinforced with uniform fibers to provide excellent service even in wet and cold applications.3. Erosion Resistant: The wheel is resistant to degradation, deterioration and erosion from oils, greases, commonly used acids, and solvents, ensuring long lasting durability in various conditions.4. Wheel Size: Our wheels come with a 20.3 mm center hole, 200mm rim length, 48mm rim width, and 1100 lbs strong capacity.5. Easy Installation: The jack wheel is designed for simple and convenient installation on jack stands, enhancing the mobility and stability of your trailer RV.Specification:Item Type: Trailer Jack Wheel ReplacementMaterial: Iron Bearing, Rubber WheelCapacity: Approx. 500kg / 1100lbsCenter Hole Diameter: Approx. 20.3mm / 0.8inWheel Rim Size: Approx. 48mm / 1.9in (Suitable for 48mm pipe diameter jack)Fitment:Fit for Trailer Jacks Wheel.Package List:1 x Trailer Jack Wheel