1、Main Function: Effectively keep water, dirt, and road grime away from the hub and bearings. By creating a barrier, the covers help maintain a clean and lubricated environment for the bearings, minimizing the risk of damage and ensuring optimal performance. 2、Stainless Steel: Wheel bearing protectors feature a stainless steel housing that provides exceptional strength and durability. This ensures resistance to rust, guaranteeing a longer lifespan for your trailer's bearings. 3、High Performance: Designed to perfectly fit hub grease cap inner diameters of 1.98 inches, the bearing protectors offer a precise fit. This ensures that they securely seal and protect the bearings, providing reliable and long lasting performance. 4、Versatile Application: Wheel bearing caps can be used for various purposes, including boat, trailers, RVs, snowmobiles, ATVs, and utility trailers. These protectors provide reliable protection for your wheel bearings. 5、Easy Installation: Installing the protectors is a simple process. With their user friendly design, you can easily fit them onto your trailer's hub. Save time and effort with the hassle free installation. Item Type: Trailer Wheel Bearing Protectors Material: Stainless Steel Application: Universal for Trailers, Boats, Snowmobiles, RVs, ATVs, Utility Trailer, etc. Fits 1.98in diameter hubs only 2 x Wheel Bearing Protectors