WUZHOU Professional---bearings constantly fail due to water, dirt, sand, and lack of grease, this tool will replenish the grease your bearings need, as well as push out contaminants. Installation---No need to remove your axle to use this tool, you only have to remove the wheel hub.Simply insert into your bearing and pump grease through zerk fitting with your grease gun. Delivery Quantity: 1pc, Package Contents: Only the above package contents, excluding other products. Size: The detailed size is shown in the picture (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: silver (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)