The product is a set of 4 2.44" Trailer Hub Caps with extruded rubber plugs, designed to fit trailer axle bearings and prevent grease leakage. These hub caps are lightweight at 0.84 pounds and compact with dimensions of 5.83x5.31x1.89 inches. The caps provide a secure fit and protection for the trailer's axle bearings, ensuring smooth operation and longevity for the trailer's components. Perfect for RV, trailer, and camper maintenance, these hub caps are essential accessories for any towing setup.