Description Our car trailer bearing dust caps and trailer wheel hub center cap set is designed to protect your trailer's wheel hubs from dust and debris. These durable rubber axle dust caps ensure a tight seal, preventing grease leakage and extending the life of your trailer's bearings. Ideal for RVs and trailers, these grease covers for trailers are essential for maintaining optimal performance and longevity. Features -Color:Black -Material:Rubber -Size:3.70X3.70X0.70cm/1.45X1.45X0.28in -Durable material for long term use: made from sturdy rubber and plastic, these trailer axle dust caps and grease plugs ensure durability and resistance to wear, protecting your trailer hubs from dirt and moisture -fit fit for various trailers: designed to fit most trailer wheel hubs, these trailer hub caps and grease covers provide a snug fit, ensuring optimal protection for your trailer axle and wheel bearings -Easy installation process: these trailer axle grease caps and rubber dust plugs are user friendly, allowing quick and quick installation without the need for special tools, saving you time and effort -Enhanced protection against contaminants: the trailer wheel bearing dust caps and hub dust covers effectively shield your trailer axle and bearings from dust, water, and debris, prolonging the lifespan of your components -Multipurpose design for versatility: suitable for rvs, cars, and trailers, these rubber axle dust caps and grease plugs offer versatile use, making them an essential accessory for various vehicle typesPackage list: 8 x wheel shaft dust covers