Easy & Secure Installation ,No Extra Tools Needed:Designed for hassle-free setup, our 1.98inch trailer hub caps come with a custom installation tool, allowing for quick, effortless installation. The snug-fit design ensures they stay in place without rattling or falling off, making maintenance easier than ever. Heavy-Duty Durability - Rust & Crack :Crafted from metal, these trailer bearing dust caps are built for . to rust, , and cracking, they maintain performance in harsh weather and rough road conditions ,Compatible with Most 2000-3500 lb Trailer Axles:Specifically designed to fit for EZ Lube & standard trailer axles, these 1.98-inch hub caps provide a snug and secure fit, preventing unwanted movement or noise. Ideal for boat trailers, RVs, campers, and utility trailers. Reliable Bearing Maintenance:Helps Reduce Dirt & Moisture Exposure.The rubber plugs allow easy access for grease application, supporting smooth axle function and . Maximum Bearing Protection, Against Dirt and Water:Prevent dirt, debris, and water from damaging your bearings. The rubber plugs offer easy access for grease application, ensuring smooth, well-lubricated performance for longer axle life. Color: Black & Silver Material: Metal Package Contents: 4 x Trailer Hub Caps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.