Application ---- Diameter of lubricator tool is approx. 1.980in (designed to be used in most 4 or 5 bolts hubs). Function ---- Bearing buddy caps can prevent wheel bearing failure on most trailers with 1.98in hub diameter. Keeps water and dirt out of hubs and bearings.. Quality ---- Trailer Lubricator Tool is made of premium stainless steel material, after fine polishing, superb skills, simple and generous appearance, fine workmanship, high strength and resistance, and durable. Easy to install ---- Bearing buddy caps are easy to install, do not require complex operation steps, do not require complex tools, are easy to use, and do not need to be modified, but it is still recommended that you use professional installation.
