Feature: 1. High Durability: Made of high grade steel alloy with galvanized appearance, ensuring high wear resistance and rust resistance for long lasting use in various harsh environments. 2. Complete Set: This kit includes 2 pieces of 1.98in OD trailer bearings dust cap grease cap with rubber plugs for convenient replacement and installation. 3. Versatile Application: Suitable for boat trailer wheel hub OD 1.98in 2000 lb to 3500 lb Axles for performance in various marine towing applications. 4. Main Function: Dust caps prevent dust, water and other debris from entering the bearing interior, protecting the bearings from pollution and wear and prolonging their service life. 5. Perfect Replacement: Ideal for refurbishing and replacing old or damaged trailer axle caps. Install without complicated tools, convenient for using, saving your time and effort. Specification: Item Type: Trailer Axle Dust Cap Material: Steel alloy galvanized + rubber Fitment: Fits Boat Trailer Wheel Hub OD 1.98in 2000 lb to 3500 lb Axles Package List: 2 x Trailer Axle Dust Cap