RV Stabilizer System for 5th Wheels and Camper Trailers Made in USA System Stabilizes a Parked Travel Trailer or Fifth Wheel Trailer Trailer Must Have 4 Jacks, 2 front and 2 Rear for the system to be installed. Includes the two required Foot Plates. If your trailer has a power leveling system you will need to order the Power Leveling Kit. Check our website www.steadyfast.com for detailed Installation Instructions. Easy setup. Permanently installed in 2-3 hours so there is nothing to setup or store. Works on both 5th Wheels and Travel Trailers with existing stabilizer jacks. There is a different Kit for trailers with power leveling systems. Eliminates Need for Tripod. Between Wheel Chocks, and Slide Out Jacks, Greatly Reduces Setup Time.