Eliminates most trailer movement associated with existing leveling or stabilizing jacks. Adapts to most crank down leveling/stabilizing jacks. Installation is a simple one time, bolt on application. Unique swivel mount works at various jack angles. Telescopic Lock-Arm travels up and down with jack for easy set up and storage. Uses 3/4" crank handle to lock and unlock Lock-Arm. Two Lock-Arms and complete mounting hardware included.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov