Jack is ideal for use with ag, industrial, commercial, and many other types of trailers that have a need for heavy lifting. All 12k models comes standard with a black painted outer tube and inner tube. Comes with grease zerk already pressed in for easy greasing of the jack. Uses brass bushing for easier cranking and reduced wear on jack. Designed for welding to frame of the trailer. The following jack comes with handle and handle clip that is for weld-on applications.