Product Description: Trailer Stabilizer Jack Stand Lock Arm; JT's Strong Arm; Travel Trailer Kit; For Use On Trailers To Create A More Stable Foundation; Mounts To Landing Gear Leg and RV Frame To Form A Triangle; Bolt On Installation; SteelLike a rock-solid race car chassis, JT's Strong Arm Jack Stabilizers use triangles - the strongest shape in nature to eliminate unwanted chassis movement. One end of each stabilizer tube attaches to each landing gear leg and the other to the RV frame, forming a rigid triangle. There is no welding required and no need to remove and reattach during setup. It's permanent! When parked, JT's Strong Arm Jack Stabilizers telescope into place with the jacks.; Weight: 39.0000; Used For: Trailers To Create A More Stable Foundation; Material: Steel; Installation Type: Bolt-On; With Inner Tube: No; With Outer Tube: No; With Rod End: No; With Mounting Hardware: YesFeatures Eliminates Annoying Chassis Movement Provides A Rock Steady Camping Experience Works With All Types Of Jacks One-Time Installation/ Permanently Attached Bolt-On Installation - No Welding Required Limited 1 Year Warranty