Keep your trailer's axles properly sealed and protected with our trailer axle grease caps. These caps are constructed with a sturdy metal exterior and a flexible rubber seal to provide a tight fit. Designed to keep grease in and dirt out, these caps are essential for maintaining the longevity and performance of your trailer's axle bearings. Features -Color:Silver -Material:Metal, rubber -Size: 5.70X5.70X3.80cm/2.24X2.24X1.49in - Metal exterior: The trailer hub grease caps feature a robust metal exterior that safeguards them against dents, scratches, and damage, providing structural integrity - Rubber sealing: The interior of the cap is equipped with a rubber gasket that prevents grease from leaking out and stops dirt from entering the axle hub - Easy to install: Simply screw trailer axle caps onto the axle hubs to secure them in place, allowing for easy maintenance and replacement when necessary - Versatile application: These bearing caps accommodate various trailer axle hubs, making them an adaptable option for different types of trailers - Outdoor use: The metal and rubber construction withstands harsh environmental conditions, including exposure to road chemicals, varying temperatures, and more Package list: 4 x trailer axle grease caps