Provides exponentially more stabilization than just scissor jacks. Eliminates movement in fifth wheels and travel trailers with a four corner cross-member eliminator stabilizing system providing a solid foundation. Mounts directly on the frame on existing stabilizer jacks and landing gear. Bolt-on. One time installation. T-handle locks struts in place with an easy twist. Easy to set up, telescopes into place. Contains four struts, mounting brackets and hardware. Does not include stabilizer jacks. If you need assistance in locating what you need then email us or give us a call and we will be happy to assist you.