Bearing Buddy II - When properly installed and maintained the Bearing Buddy can help preserve the bearing as well as keeping it from failing. By keeping the water and grit out of your bearings with the Bearing Buddy you will further eliminate the need to repack the bearings on your trailer. Submerge your bearings worry free without worrying about what kind of damage you are causing. 2 per packDiameter: 1.980inAuto pressure controlQuick visual check of lubricant level and internal hub pressure