Trailer owners, these bearing dust caps are one of those simple but crucial maintenance items you don't think about until you need them! The 1.98-inch size fits most standard 2000 to 3500 pound trailer hubs, including Dexter EZ Lube and standard axle types. They're made from premium steel with zinc-plated coating that resists rust and corrosion, so they'll last through all kinds of weather conditions. The package includes 2 dust caps PLUS 2 extra rubber plugs - which is awesome because those little plugs always seem to disappear when you need them most. These caps do the important job of keeping dust, dirt, and moisture out of your wheel bearings, which extends the life of your bearings and saves you from costly repairs down the road. The fit is designed to be slightly larger for a secure snap-in placement that won't pop off while you're driving. Compatible with most 4-lug and 5-lug axles with standard brakes. Installation is straightforward - just clean the hub surface and press them into place. Whether you're maintaining your boat trailer, utility trailer, RV, or camper, these quality caps provide that essential protection your wheel bearings need. For the price, having two complete sets with spare plugs is fantastic value. Just double-check your current cap size before ordering to ensure proper fit, but for most standard trailers, these will work perfectly.