I can't say enough bad things about this little jack. I was working on a project involving removing dents from an old brass pipe, so I had to push them out from the inside and work within 4-5 inches of the pipe's diameter. This low profile jack is just the ticket! I fitted a 2" ball bearing to the piston and this little jack pushed out the dents with ease. I am very happy with it. It came with all the hardware taped and threaded and worked right away after I hooked it up to my hydraulic arm. Pump This thing will help me a lot in my workshop!